X
Lost password?

Don't have an account?
Gain Access Now

X

Receive free daily analysis

NFL
NBA
NHL
NASCAR
CFB
MLB
MMA
PGA
ESPORTS
BETTING

Already have an account? Log In

X

Forgot Password


POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Value Picks
Compare Any Players
News and Alerts

Early 2023 Fantasy Football Draft Targets and Sleepers – Wide Receivers

Jahan Dotson - Fantasy Football Rankings, Draft Sleepers, Waiver Wire Pickups

Phil Clark identifies wide receivers worth targeting in 2023 fantasy football drafts as ADP values and sleepers who could break out.

It is always critical for you to remain flexible in your decision-making throughout the entire fantasy football draft process even though that recommendation should not deter you from developing a plan before you begin each draft. Knowledgeable fantasy managers are already aware that the decisions that are made during every round remain important, which underscores the need to adjust your strategic approach as each draft progresses.

That also provides the rationale for determining which players should be targeted once drafts have advanced beyond the early rounds since the selections that you make during the middle and late rounds remain crucial - even if you are ecstatic with the players that you secured near the onset of your drafts.

These players can become vital resources for your rosters if you are prepared to capitalize on their availability when you have an opportunity. This article will help your pre-draft planning by identifying wide receivers who are primed to outperform the current expectations of their ADPs. Draft results from January and February in the FFPC’s best ball leagues have been used in the creation of this article.

Editor's Note: Find sleeper picks, undervalued ADPs, and draft targets to help you dominate your fantasy football drafts. Try our free who to draft tool for personalized recommendations.

 

Jahan Dotson, Washington Commanders

Dotson was the fifth wide receiver to be selected during the 2022 NFL Draft when Washington secured him with the 16th overall pick. The Commanders opted to seize Dotson after he had generated 91 receptions, 1,182 yards, and 12 touchdowns during his final year at Penn State (2021).

His first season with Washington was shortened by a hamstring injury, but his appealing blend of speed, athleticism, and adeptness as a route-runner should usher him to weekly WR2 status during his second year.

Dotson did launch his rookie season with promising results as he led the Commanders in snap share (93.4%), and routes run (92) in Weeks 1-2, while averaging 5.0 targets/3.5 receptions/50 yards per game, and vaulting to second among all wide receivers with three touchdowns. The problematic hamstring brought a sudden halt to Dotson’s production during the Commanders’ Week 4 matchup in Dallas, and he did not resurface until Week 10.

His involvement in Washington’s distribution of targets was dramatically reduced upon his return as he only accumulated four targets, two receptions, and 27 receiving yards from Weeks 10-12.

This catch though! @JahanDotson stays makin' plays

However, Dotson led the Commanders in targets from Weeks 13-18 (35/7.0 per game) and paced the team in targets (26/6.5 per game), receptions (16/4.0 per game), receiving yards (290/72.5 per game), air yards (382), air yards share (36.8%), and yards after catch (83) from Weeks 15-18.

Weeks 15-18 Rec Yards Yards/Gm
A.J. Brown 476 119
DeVonta Smith 421 105.3
CeeDee Lamb 398 99.5
Jerry Jeudy 385 96.3
Jaylen Waddle 353 88.3
Keenan Allen 352 88
K.J. Osborn 350 87.5
Drake London 333 83.3
Chris Godwin 321 80.3
Mike Evans 319 106.3
Justin Jefferson 309 77.3
Jahan Dotson 290 72.5

 

Weeks 15-18 Air Yards AY %
A.J. Brown 602 44.04
Garrett Wilson 589 42.25
Davante Adams 471 34.11
D.J. Moore 453 58.38
DeVonta Smith 432 31.6
Mike Evans 432 49.32
Tyreek Hill 431 42.3
CeeDee Lamb 391 31.71
Drake London 390 47.16
Jahan Dotson 382 36.84

Dotson finished 10th overall in air yards and 12th in receiving yards was targeted on 22.2% of his 117 routes and averaged 2.48 yards per route run during that sequence. He also finished second among rookies in receiving yards and third in targets, receptions, air yards, and yards after the catch.

Dotson’s seven touchdowns from Weeks 1-18 also tied him with Christian Watson for the lead among rookies, while he also finished 10th among all receivers in yards before catch per reception (11.0) and 14th in aDOT (13.5).

Dotson accumulated his numbers while operating with three different signal callers during his 12 matchups as Taylor Heinicke (six) and Carson Wentz (five) combined for 11 starts, while Sam Howell spearheaded Washington’s aerial efforts in Week 18. Howell could also emerge as Washington’s starter during the Commanders’ season opener although the situation will remain unsettled until we have advanced further into the offseason.

Washington will be transitioning to a new offensive coordinator following the departure of Scott Turner, but Dotson and Terry McLaurin should operate as the top two receiving weapons within the Commanders’ restructured attack. This should allow Dotson to function with a sizable percentage of targets during the majority of his matchups. He possesses the talent to capitalize on his opportunities and generate numbers that propel him beyond the expectations of his ADP in best ball drafts (90/WR39).

 

Treylon Burks, Tennessee Titans

Burks performed with an intriguing blend of speed and athleticism during his collegiate career at Arkansas, while also possessing the versatility to operate from multiple areas of the field. The Titans were sufficiently enamored with the 6’3, 225-pound Burks to jettison A.J. Brown to Philadelphia in exchange for a chance to seize Burks with the 18th overall selection of the 2022 NFL Draft.

That instantly presented Burks with the opportunity to ascend atop Tennessee’s depth chart while confiscating the WR1 responsibilities that had previously been entrusted to Brown. His ability to accumulate eye-opening numbers during his first season was circumvented by health issues that sidelined him during six of Tennessee’s matchups.

However, the promising usage and big-play capabilities that were displayed during several sequences in his rookie season now provide the basis for optimism that his production will increase significantly during his second year.

Burks was limited to a combined 49 snaps in Weeks 1-2 but still secured a 20.8% target share. He was also targeted on 36.7% of his routes – which led all wide receivers who had run 30+ routes – and averaged 3.4 yards per route run during those contests. He also led Tennessee in targets (11/5.5 per game), receiving yards (102/51 per game), air yards (144), air yards share (29.3%), and yards after catch (45) despite his managed involvement.

A turf toe issue forced his absence from Weeks 5-9. However, he established season-highs in target share (29.6%), targets (eight), receptions (seven), and receiving yards (111) when the Titans visited Green Bay in Week 11. He also led all receivers in targets per route run (38.1%) and yards per route run (5.3), while finishing 12th overall with 18.1 fantasy points.

Burks was limited to 10 snaps in Week 13 before he sustained a concussion, as he absorbed a significant hit while securing a touchdown pass.

He also tied his season-high by capturing eight targets for 66 yards when Tennessee hosted Dallas in Week 17 and vaulted to ninth among all receivers in air yards (122).

The identity of Tennessee’s starting signal caller entering Week 1 remains unclear. However, Burks currently resides atop a depth chart that also contains Robert Woods, Nick Westbrook-Ikhine, and Kyle Philips, and he should operate as the Titans' primary receiving option. His favorable usage and home-run capabilities make him an enticing option at his Round 8 ADP in best ball drafts (87/WR38). 

 

Rashid Shaheed, New Orleans Saints

Shaheed was signed by New Orleans as an undrafted free agent in 2022 after stockpiling 5,478 all-purpose yards during his collegiate career at Weber State. He had also accumulated 146 receptions, 2,164 receiving yards, and 18 receiving touchdowns as a Wildcat, while his exceptional speed also helped him generate seven touchdowns on kickoff returns.

Multiple factors fueled a lack of interest in Shaheed during the NFL Draft. Not only had he failed to generate impressive numbers as a receiver, but he had been recovering from a torn ACL leading up to the draft. This blended unfavorably with concerns regarding his age, as he was destined to turn 24 before Week 1.

Shaheed didn’t register his first snap until Week 6, and the modest beginning to Shaheed’s NFL career understandably left fantasy managers uninspired by the prospects of securing him for their rosters during that span. However, Shaheed’s involvement increased as the year progressed. He also displayed the capacity to generate yardage and fantasy points at a level that easily transcends the minimal investment of his current ADP.

Shaheed began his rise into relevance after being elevated from the practice squad in Week 6 when he promptly bolted for a 44-yard rushing touchdown during his NFL debut.

His first career reception also resulted in a 53-yard touchdown in Week 7.

He later eclipsed 75 receiving yards in three of his four matchups from Weeks 13-17. That propelled Shaheed to 22nd overall in receiving yards during that sequence (290/72.5 per game), which included the Saints’ bye week. He was also 17th in yards after catch (123), while averaging 4.8 targets/4.3 receptions per game during those contests.

Weeks 12-17 YPRR
Christian Watson 4.55
Rashid Shaheed 3.99
Tyreek Hill 3.57
A.J. Brown 3.37
Mike Williams 3.36
Michael Pittman 3.34
Amon-Ra St. Brown 3.08
Drake London 3.06
DeVonta Smith 3.02
Davante Adams 3.01
Diontae Johnson 3.01

 

Weeks 12-17 YPT
Rashid Shaheed 15.6
D.J. Chark 13.4
Mike Williams 12.6
D.J. Moore 11.8
Jaylen Waddle 11.7
A.J. Brown 11.2
George Pickens 11
Kalif Raymond 10.8
Tee Higgins 10

Shaheed also vaulted into the league lead in yards per target (15.6) from Weeks 12-17 among receivers who collected 20+ targets. Shaheed was also second in yards per route run (3.99), and fifth in yards per reception (18.1) during that five-game span.

Amazingly, 87 wide receivers are currently being selected before Shaheed in deeper best-ball leagues (ADP 278/WR88). This provides an opportunity to benefit from his availability by seizing him during your upcoming drafts. Offseason roster alterations could change his status, but he is currently positioned to operate as the Saints‘ WR2 behind Chris Olave.  This creates a path for Shaheed to deliver big plays as a dynamic vertical weapon, and he can also accumulate yardage after the catch while operating on shorter routes.

If the Saints infuse more imagination into their offensive approach and secure an upgrade at quarterback, those improvements would also boost an already-promising outlook for Shaheed.

 

Khalil Shakir, Buffalo Bills 

Shakir is a capable route runner with reliable hands and the versatility to operate outside or from the slot. His enticing blend of attributes did not propel him to a sizable target share in 2022 (6.1%), but Shakir can deliver a significant increase in his output if he can seize an expanded role in Buffalo’s aerial attack during his second season.

Shakir’s prospects of securing more opportunities will be determined by the modifications that are made to the Bills’ depth chart during the offseason. However, his potential to capitalize on any increase in his usage provides the incentive for targeting him as he is not being selected in the majority of 28-round drafts.

The Bills selected Shakir during Round 5 of the 2022 NFL Draft (148th overall) after he had accumulated 208 receptions, 2,878 receiving yards, and 20 touchdowns during his four seasons at Boise State. He also performed impressively in training camp and accumulated 151 yards (50.3 per game) during Buffalo's preseason matchups. This accelerated interest in Shakir as a late-round draft option with the belief that he was ascending toward an ongoing role during his first season.

Shakir's ability to secure a favorable target share was largely impeded by a congested depth chart as Isaiah McKenzie, Jamison Crowder, Isaiah Hodgins, and Jake Kumerow were also competing for opportunities behind Stefon Diggs and Gabe Davis entering Week 1, while Cole Beasley and John Brown were also added to the Bills’ roster during the season.

Shakir completed his first year with unexceptional numbers as he operated on 261 offensive snaps (29.3% share), collected 10 of his 20 targets, accumulated 161 receiving yards, and generated 195 air yards. He only attained a 40% snap share in two different contests but did secure a season-high 70% share when the Bills hosted Pittsburgh in Week 5. He also established season-highs in targets (five) and receiving yards (75) during that same matchup.

Shakir also ran 44.6% of his 97 routes from the slot, and only reached 20 routes in one matchup during the year. Shakir was also targeted on 20.6% of his routes during his rookie season while averaging 1.66 yards per route run.

However, even though his involvement in Buffalo’s aerial attack was limited throughout the majority of his matchups during 2022, it is premature to dismiss him as a resource for fantasy managers after one season. He is capable of accumulating numbers that launch him firmly into the fantasy landscape if his target share rises during his second year.

 

Calvin Ridley, Jacksonville Jaguars

There is an inherent risk in prioritizing Ridley among your draft targets while his suspension remains intact. He will also turn 29 in December and will be performing after an extended absence upon his return. However, these factors have also impacted his ADP, and the potential benefits of securing him during early drafts also deliver the prospects of a significant return on investment if Ridley is reinstated during the offseason. 

Exactly two years ago, Ridley was entering the 2021 offseason having just finished fourth among all wide receivers in point-per-game scoring (18.8). Ridley had also completed his 2020 regular season with a league-high 2,018 air yards while pacing his position with 1,099 yards before the catch. He also soared to fourth in receiving yards (1,374/91.6 per game), including a league-best eight games of 100+. Ridley was also second in air yards share (41.6%), seventh in targets (143/9.5 per game), 11th in receptions (90/6.0 per game), and generated nine touchdowns.

2020  Rec Yards 100+ 
Stefon Diggs 1535 7
DeAndre Hopkins 1407 7
Justin Jefferson 1400 7
Calvin Ridley 1374 8
Davante Adams 1374 7

 

2020  Air Yards AY %
Calvin Ridley 2018 41.56
D.K. Metcalf 1768 39.21
Stefon Diggs 1713 34.24
Tyreek Hill 1708 35.92
D.J. Moore 1551 40.76

 

2020  YBC YBC/Rec
Calvin Ridley 1099 12.2
Stefon Diggs 1071 8.4
Justin Jefferson 947 10.8
D.K. Metcalf 940 11.3
Allen Robinson 931 9.1

Unfortunately, Ridley has only played in five regular season games since that career-best season and has not registered a snap since October of 2021. He was limited to 52 targets/31 receptions/281 receiving yards during that 2021 season before he requested a personal leave in order to focus on his mental health.

Ridley was also suspended throughout all of 2022 for betting on NFL games during the 2021 regular season and was eventually traded to Jacksonville in exchange for two conditional draft picks. The Jaguars have expressed their optimism that he will be reinstated, and Ridley's current ADP in best ball drafts (73/WR33) is below the draft position that he will ascend to if that occurs.

The collection of numbers that were mentioned previously will provide renewed perspective regarding his elite status following that breakout season, which had also compelled fantasy managers to seize him early in Round 2 of 2021 drafts (14/WR4).

He will be 28 when the regular season launches in September and would benefit from infusion into an aerial attack that is spearheaded by Trevor Lawrence. Only four teams distributed a higher percentage of targets to their wide receivers than Jacksonville during 2022 (64.2%), as Christian Kirk commandeered a team-high 24.6% share. Zay Jones was second on the Jaguars (23.1%), followed by tight end Evan Engram (18.2%), and Marvin Jones (15.6%).

Kirk also finished 15th overall, with 133 targets (7.8 per game), while operating from the slot on 71.8% of his routes. He also led Jacksonville in multiple receiving categories and will retain a sizable role in the Jaguars’ aerial attack. Zay Jones’ sixth NFL season was his most prolific and he should also remain involved in the distribution of targets. Marvin Jones is a free agent who will turn 33 in March, and could easily resurface on a different roster by Week 1.

Ridley may not replicate the 9.5 targets per game average he attained during his career-best season with Atlanta, but he should join Kirk in operating as the Jaguars' top two receiving weapons.  He should also accumulate numbers that will justify your decision to secure him during your upcoming drafts.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy football app for iPhone and Android with 24x7 player news, injury alerts, rankings, starts/sits & more. All free!

More Fantasy Football Analysis




POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Value Picks
Compare Any Players
News and Alerts

REAL-TIME FANTASY NEWS

Shemar Stewart

Not Practicing With College Team
Uchenna Nwosu

Seahawks Place Uchenna Nwosu on PUP List
Taylor Decker

Alim McNeill, Taylor Decker Placed on PUP List
Tyrion Davis-Price

Titans Waive Tyrion Davis-Price
Tre Harris

Chargers Relying on Tre Harris to Be Starting X Receiver
Eugenio Suárez

Eugenio Suarez Expected Back Friday
Micah Parsons

Will Become Highest-Paid Non-QB
MarShawn Lloyd

Vying for RB2 Role
Keandre Lambert-Smith

KeAndre Lambert-Smith Finds End Zone in First Training Camp Practice
Tyler Shough

Pushing for Fully Guaranteed Rookie Deal
Ar'Darius Washington

Goes on PUP List
Lamar Jackson

to be Even Better in 2025?
Tre Harris

Agrees to Terms on Rookie Deal
Justin Herbert

Off to Good Start at Training Camp
Jameson Williams

Earning Rave Reviews from Lions Coaches
Christian Mahogany

Expected to Start for Lions
Zach Allen

an Extension Candidate in Denver?
Zaire Franklin

May Miss Start of Training Camp
Portland Trail Blazers

Damian Lillard Returning to Portland
Mason Taylor

to Play "Crucial" Role in Jets' Offense
Paul Skenes

Pirates Could Preserve Paul Skenes in Second Half
T.J. Watt

Once Again Becomes Highest-Paid Non-QB
RJ Harvey

Reaches Agreement on Four-Year Rookie Contract
Rashee Rice

Chiefs Believe Rashee Rice Will Receive Two- to Four-Game Suspension
Brooks Barnhizer

Grabs 19 Points, Nine Boards in Summer League Win
Jeremiah Fears

Scores 22 Points in Summer League Loss to Thunder
Isaiah Collier

Collects 17 Points In Summer League Win
Caleb Houstan

Joins Hawks
AJ Johnson

Erupts for 25 Points in Summer League Loss
Washington Wizards

Leaky Black Logs Double-Double in Loss to Jazz
Connor Norby

Undergoes Surgery, Expected to Miss 6-8 Weeks
Trey Alexander

Tallies 25 Points in Losing Effort
Johni Broome

Records Second Consecutive Double-Double
Jahmir Young

Has Historic Summer League Outing
Rob Dillingham

Plays Big Role in Wednesday's Win
Tyrese Proctor

Erupts for 35 Points Against Kings
Cody Williams

Leads Jazz to Victory Against Wizards
LeBron James

Mavs Not Interested in "Gutting its Roster" For LeBron James
Josh Hart

Undergoes a Procedure on Right Finger
Jake Burger

Goes on 10-Day Injured List With Quad Strain
Sal Frelick

Dealing With Grade 1 Hamstring Strain, TBD for Start of Second Half
Chris Sale

Plays Catch
Los Angeles Clippers

Bradley Beal Heading to Los Angeles to Join Clippers After Contract Buyout
Rayan Rupert

Scores 24 Points in Summer League Win
Derik Queen

Collects Third Consecutive Double-Double in Summer League Loss
GG Jackson II

Records 13 Points in Summer League Action on Tuesday
Johni Broome

Logs Double-Double Against Wizards
DaRon Holmes II

Records Double-Double in Summer League Loss to Raptors
Kyle Schwarber

Named All-Star Game MVP
Harris English

Takes Stellar 2025 Performance to The Open Championship
Aldrich Potgieter

Seeks Better Result in Northern Ireland
Cameron Young

Likely to Hang Around at The Open Championship
Cameron Smith

Just Trying to Make the Cut at Royal Portrush
Jordan Spieth

Is Jordan Spieth Still a Natural for Links Style Golf?
Patrick Reed

a Viable Option at The Open Championship
PGA

Sungjae Im Wants to Rebound from Last Experience at Royal Portrush
Xander Schauffele

Looks to Defend His Claret Jug at Royal Portrush
Tony Finau

Trying to Turn Tide at Royal Portrush
Daniel Brown

Seeks a Rebound at The Open Championship
Rory McIlroy

Will be the Most Watched Player This Week at Royal Portrush
Daniel Berger

Trending Poorly as The Open Championship Looms
Clayton Kershaw

Retires Both Batters In ASG Appearance
Eugenio Suárez

Eugenio Suarez Hit In Pinky In All-Star Game, X-Rays Negative
MLB

NL All-Stars Win On Tie-Breaker Home Run Swing-Off
Robert MacIntyre

Hoping to Bounce Back at Open Championship
Shane Lowry

Hopes to Repeat at Royal Portrush
Brian Harman

Hopes to Rekindle Some Magic at the 153rd Open
UTA

Michael Carcone Returns to Utah on One-Year Contract
Bowen Byram

Signs Two-Year Deal with Sabres
Morgan Barron

Jets Re-Sign Morgan Barron for Two Years
PGA

Chris Gotterup Punches Ticket to Royal Portrush With Win at Scottish Open
Bryson DeChambeau

Hopes to Reverse Links Golf Struggle at the 153rd Open
Keegan Bradley

Needs to Find The Weekend at Royal Portrush for Ryder Cup Hopes
Oneil Cruz

Ties Home Run Derby Distance Record
Cal Raleigh

Wins 2025 Home Run Derby
Justin Thomas

Finishes Tied For 22nd at Genesis Scottish Open
Scottie Scheffler

Finishes Tied For Eighth at Genesis Scottish Open
Jon Rahm

Finishes in Second at LIV Andalucia
Tallison Teixeira

Suffers First-Round TKO
Derrick Lewis

Scores First-Round TKO
Michael Lorenzen

Royals Put Michael Lorenzen on Injured List With Oblique Strain
Stephen Thompson

Loses Controversial Split Decision
Gabriel Bonfim

Wins Controversial Split Decision
Calvin Kattar

Gets Outclassed At UFC Nashville
Steve Garcia

Extends His Win Streak
Nate Landwehr

Gets Knocked Out
Morgan Charrière

Morgan Charriere Scores Third-Round Knockout
Austen Lane

Suffers Submission Loss
Vitor Petrino

Scores First-Round Submission In Heavyweight Debut
Tuco Tokkos

Earns His First UFC Win
Junior Tafa

Unsuccessful in his Light-Heavyweight Debut
Chase Elliott

Charges to A Finish of Third At Sonoma
Chase Briscoe

Finishes Second With his First Career Road-Course Top-Five at Sonoma
Christopher Bell

Rollercoaster Day Ends With Top-5 Finish at Sonoma
William Byron

Maintains the Regular-Season Points Lead
Kyle Busch

Earns A Hard-Fought Top-10 Finish At Sonoma
Alex Ovechkin

Not Thinking About Retirement
PIT

Penguins Acquire Arturs Silovs
NHL

Nikolai Kovalenko Returns to Russia
Yoshinobu Yamamoto

Tosses Gem Against Giants
Shota Imanaga

Shuts Down Yankees on Sunday
Nathan Eovaldi

Dominant Again in Seventh Win
Tyler Reddick

Evades Near Upset to Remain Alive in In-Season Challenge
Ty Gibbs

One of Three Tylers to Make In-Season Challenge Semifinals
Kyle Larson

Curiously Mediocre at Sonoma Before Late-Race Crash
NASCAR

John H. Nemechek Edges Out Teammate to Make In-Season Challenge Semifinal
Alex Bowman

Ty Dillon Bumps Alex Bowman to Advance to In-Season Challenge Semifinal
Chicago White Sox

Billy Carlson Goes 10th Overall to White Sox
Cincinnati Reds

Steele Hall Selected Ninth by Cincinnati
Toronto Blue Jays

Blue Jays Select JoJo Parker with Eighth Overall Pick
Miami Marlins

Marlins Select Aiva Arquette With Seventh Overall Pick
Pittsburgh Pirates

Pirates Select Seth Hernandez with Sixth Overall Pick
Shane Van Gisbergen

Can Anyone Beat Shane van Gisbergen at Sonoma?
Tyler Reddick

Better at Sonoma Than Record Shows
Chase Elliott

a Prime DFS Option at Sonoma
Michael McDowell

Struggling a Bit at Sonoma
NASCAR

Christopher Bell Has Never Finished Better Than Ninth at Sonoma
Ryan Blaney

Has Top-10 Upside at Sonoma
NASCAR

Sunday at Sonoma Will Likely Be a Long Race for Bubba Wallace
Kyle Larson

Is A Likely Top-Five Contender for Sonoma
Ryan Preece

Points Position Could Affect Race at Sonoma
Todd Gilliland

Struggling to Find Speed at Sonoma
Ty Gibbs

May be an Underrated Favorite to Compete for the Win at Sonoma
Erik Karlsson

Open to Move Away From Pittsburgh
Zach Hyman

Hopes to be Ready for Start of Next Season
SJ

Jeff Skinner Joins Sharks on One-Year Contract
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF