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Defenses (DEF) to Start in Week 17: Fantasy Tiers & Rankings

For those of you fantasy football owners out there who are still in the hunt and have questions about defenses, RotoBaller has got you covered with around-the-league analysis of the Week 17 NFL defensive matchups.

Just as in every other week of the fantasy football season, we're here to give you the insight to help make your defense streaming and Week 17 lineup decisions a bit easier. Unlike every other week, the majority of fantasy leagues have already crowned their champions, so we'll only be covering a few of the top streaming targets. Good luck in your playoff matchups, RotoBallers!

 

Editor's Note: The FFPC Baby Gorilla Tournament is now open, featuring a $100,000 grand prize and a $675,450 total prize pool! This 12-team, Tight End Premium contest uses a 20-round draft format, with the overall winners determined by total points scored during Weeks 15–17. Get $25 to use toward your first entry by signing up through our link. Grab your team now! Sign Up Now!

Week 17 Defenses: Playoff Tiers & Rankings

Tier 1: Seattle Seahawks, Houston Texans

At the top of the first tier, we find Seattle with a nice matchup against the St. Louis Rams. Shaun Hill, Tre Mason and Kenny Britt have been putting up 21 PPG, but the Seahawks have continued their dominance and are allowing fewer than seven points per game over the last five weeks. The Rams have allowed 45 sacks on the year, and Seattle's pass rush has been effective recently, with 20 sacks in their past six games.

The Texans travel to Jacksonville to take on Blake Bortles and Allen Hurns, who have only been able to put up 15.5 per game offensively. They've turned the ball over 26 times and have allowed over 60 sacks. The Texans have only been giving up 19 points per game, and they will look to capitalize on opportunities against a turnover-prone offense. They've racked up 33 sacks including 11 in their past four games, with nine turnovers in that span, as well. Both these teams are locked-in starts this week for any playoff matchup.

 

Tier 2: New England Patriots, Denver Broncos, Indianapolis Colts

The second tier starts off with the New England Patriots playing host to Kyle Orton, Sammy Watkins and the Buffalo Bills, a team that has been putting up 22 PPG, while turning the ball over 22 times and allowing 37 sacks on the year. The Patriots, on the other hand, have generated 38 sacks of their own, and have only been giving up 20 points per game.

The Broncos host the lowly Raiders, who have only been averaging 16 PPG offensively with Derek Carr, James Jones and Latavius Murray. Oakland has turned the ball over 27 times on the year, and their O-Line has let up 25 sacks. Denver had been allowing 22 per game prior to their Monday night game against the Bengals, and they have generated 21 turnovers to go with their 38 sacks.

Rounding out the second tier, we find the Colts heading to Tennessee to take a Titans team that has only been putting up 16 points per game. They've turned the ball over 25 times on the year and have let up more than 40 sacks. Indianapolis has been giving up 24 PPG, and other than their most recent performance against the Cowboys, have been pretty good the past month or so. They've racked up 25 turnovers and 37 sacks on the year, and will look finish the regular season strong going into the playoffs. These three tier two teams are pretty much must-starts this week, as there won't be many other viable options.

 

Tier 3: Miami Dolphins, Baltimore Ravens

In the third tier, we find two pretty good defenses against mediocre opponents, starting off with the Dolphins playing host to the New York Jets. Geno Smith, Percy Harvin and Eric Decker have only been able to put up 16 per game and have turned the ball over 23 times so far. They've also let up more than 45 sacks and are facing a Dolphins pass rush with 39 sacks to go with their 24 takeaways and 22 PPG.

Wrapping up the third tier are the Ravens hosting the Browns, who may be without either of their QBs. Cleveland has only been putting up 19 per game and has turned the ball over 21 times on the year. They've also let up 24 sacks and will be facing one of the league's better pass rushes, which boasts 45 sacks on the year. Baltimore has 20 takeaways to go with their impressive sack total and 19.5 PPG average. Either of these third-tier squads are likely to be among the better options for fantasy managers in their championship games.

 

Good Luck Rotoballers!




REAL-TIME FANTASY NEWS

MLB

Orioles-Tigers Game Postponed on Saturday
RJ Harvey

to be Relegated to Third-Down Role After Rookie RB Addition?
Baker Mayfield

A Lot of Uncertainty Surrounding Baker Mayfield Going into Fourth Year in Tampa
Brian Robinson Jr.

a Must-Have Handcuff in Dynasty Leagues?
Sam LaPorta

Could be Excellent Buy-Low Candidate for Risk-Tolerant Managers
Jordyn Tyson

on a "Maintenance Plan" During Offseason Workouts
Kenneth Walker III

One of Dynasty's Biggest Risers for 2026
D'Andre Swift

an Underappreciated Dynasty Buy Candidate
Ray Davis

Still a Dynasty Stash Despite a Lack of Standalone Value
Travis Kelce

Now a Low-Cost Dynasty Rental
DJ Moore

a Reasonable Buy Candidate Now That Dynasty Market Has Cooled
MLB

Rays-Yankees Postponed on Saturday
Devin Vassell

Posts 20 Points in Game 3 Loss
De'Aaron Fox

Struggles From Deep in Friday's Loss
Victor Wembanyama

Held to Four Rebounds in Game 3 Loss
Jaylin Williams

Catches Fire From Deep Friday
Jared McCain

Drops Playoff-High 24 Points in Game 3
Nazem Kadri

Contributes an Assist in Losing Effort
Shai Gilgeous-Alexander

Guides Thunder to 2-1 Series Lead
Ajay Mitchell

Does Not Return in Game 3 Win
Ross Colton

Nets Lone Avalanche Goal Friday Night
Rasmus Andersson

Extends Assist Streak to Four Games
Pavel Dorofeyev

Focuses on Playmaking in Friday's Win
Jack Eichel

Enjoys Multi-Point Outing in Game 2 Win Friday
Ivan Barbashev

Amasses Three Points as Golden Knights Grab 2-0 Series Lead
Jordan James

Most Likely to be 49ers' RB2 in 2026
Mickey Moniak

Heads to Injured List With Ankle Sprain
Rudy Gobert

Earns Eighth All-Defensive First-Team Selection
Victor Wembanyama

Headlines 2025-26 All-Defensive First Team
Ajay Mitchell

Starting Game 3 Against Spurs
Dylan Harper

Available for Game 3 Against Thunder
De'Aaron Fox

Returns to Action Friday
Jalen Williams

Won't Play Friday Night
Derrick Henry

Remains in RB1 Discussion
Ladd McConkey

is Solid Buy-Low Candidate
Ryan Flournoy

an Intriguing Dynasty Stash Option
Jalen Nailor

is Expected to Have Larger Role in Las Vegas
Frederik Andersen

Hurricanes Keep Faith in Frederik Andersen
Devon Levi

Attracting Interest From Senators
Jacoby Brissett

Cardinals Not Close to a Reworked Deal
Scott Wedgewood

Starting Game 2 Against Golden Knights
Ben Hutton

Scratched for Game 2 Against Avalanche
Mark Stone

Won't Play Friday
Jackson Merrill

has Sore Ribs, Expected to Avoid Injured List
Cale Makar

Remains Out Friday
CFB

Jaron-Keawe Sagapolutele Looking to Take Sophomore Leap
CFB

Jadan Baugh Primed to Lead Florida Offense in 2026
CFB

LSU Hires Ed Orgeron As Special Assistant
NFL

Evan Stewart Pushing Oregon Receiving Corps
CFB

North Carolina and South Carolina Cancel Home-And-Home Series
CFB

Confidence High in Mississippi State's Kamario Taylor
MLB

Reds-Cardinals Game Postponed on Friday
New York Giants

Giants, GM Joe Schoen Agree on a Multi-Year Extension
Andrew Thomas

Giants Managing Multiple Injuries for Andrew Thomas
Cam Ward

Loses 10 Pounds in the Offseason
Trevor Story

has Hernia Surgery, Expected to Miss 6-10 Weeks
Roman Anthony

Dealing With Sprained Ligament in his Finger
Tucker Kraft

a Top Trade Target in Dynasty Leagues?
Evan Mobley

Fills the Box Score in Game 2 Loss
James Harden

Held to Two Assists Thursday
Donovan Mitchell

Leads Cavaliers in Scoring in Game 2 Defeat
Karl-Anthony Towns

Records Double-Double in Game 2 Win
Sebastian Aho

Picks Up an Assist in Series-Opening Loss
Mikal Bridges

Adds 19 Points as Knicks Grab 2-0 Lead
Jalen Brunson

Hands Out 14 Assists in Game 2 Win
Seth Jarvis

Needs 33 Seconds to Score in Game 1 Loss
Josh Hart

Erupts for Playoff Career-High 26 Points in Game 2
Jaccob Slavin

Struggles in Game 1 Against Canadiens
Jakub Dobes

Sharp in Game 1 Victory
Cole Caufield

Bags Two Points in Impressive Road Win
Juraj Slafkovsky

Opens Conference Finals With Three-Point Performance
Nick Suzuki

Notches Three Assists in Game 1 Win Over Hurricanes
Ronald Acuña Jr.

Ronald Acuna Jr. Exits Early, X-Rays Come Back Negative
Jrue Holiday

Wants to Stay in Portland
Alex Tuch

Hopes to Remain in Buffalo
Sidney Crosby

Wants to Play for "as Many Years as Possible"
Robby Snelling

Will Undergo Tommy John Surgery
Jackson Merrill

Tweaks his Back on Wednesday, Pulled Early
CFB

Lincoln Riley Believes USC is Ready for Playoff Run
CFB

Notre Dame-Stanford Rivalry Renewed Through 2028
CFB

Ahmad Hardy Says He's "Back to the Road to Success"
CFB

Texas Tech Graduate Judge Recuses Himself from Brendan Sorsby Case
CFB

UCLA Tackle Jordan Davis Officially Eligible for 2026 Season
CFB

Bret Bielema Supports Significant College Football Playoff Expansion
Michael Thorbjornsen

Brings High Upside to CJ Cup Byron Nelson
Luke List

Carrying Poor Form Into CJ Cup Byron Nelson
Tom Kim

Hoping to Build on Strong Myrtle Beach Finish
PGA

Sungjae Im Brings Upside to TPC Craig Ranch
Billy Horschel

Looking for Turnaround at CJ Cup Byron Nelson
Adam Hadwin

Difficult to Trust at TPC Craig Ranch
Tony Finau

Looking for Consistency at TPC Craig Ranch
Luke Clanton

Searching for Form at CJ Cup Byron Nelson
Aaron Rai

Withdraws From CJ Cup Byron Nelson
Wyndham Clark

Can Wyndham Clark Find Form at CJ Cup?
Si Woo Kim

Looks To Stay Hot at CJ Cup
Scottie Scheffler

to Defend CJ Cup Byron Nelson Title This Week
Jordan Spieth

Looking For Victory at TPC Craig Ranch
PGA

Matti Schmid Looks to Keep Recent Momentum Going at TPC Craig Ranch
Brooks Koepka

a High-Upside Play at CJ Cup Byron Nelson
Yandy Díaz

Yandy Diaz Exits Early on Tuesday After Being Hit By Pitch
Chris Kirk

Continues Search For Putting Form at TPC Craig Ranch
Rasmus Hojgaard

Looking to Shake Off Poor Major Showing at TPC Craig Ranch
Joel Dahmen

is of No DFS Consideration This Week in Dallas
Pierceson Coody

is Not The Fun DFS Play He Used to Be
Gerrit Cole

to Make Season Debut on Friday Against Rays
Drake Baldwin

Braves Place Drake Baldwin on Injured List With Oblique Strain
CFB

Ezavier Crowell has Immediate Opportunity at Alabama
CFB

Mark Bowman a Day 1 Impact Player for USC?
CFB

Bill Belichick Says Relationship with First North Carolina Team "Wasn't Great"
CFB

Kemario Taylor a Breakout Candidate at Quarterback
CFB

Trinidad Chambliss the Undisputed Top SEC Quarterback Entering 2026?
CFB

Rocco Becht The "Unifier" of Penn State's Roster
Jackson Holliday

Orioles Reinstate Jackson Holliday From Injured List on Monday
Ronald Acuña Jr.

Braves Reinstate Ronald Acuna Jr. From Injured List on Monday
Jose Altuve

Astros Put Jose Altuve on Injured List With Oblique Strain
Corey Seager

Going on Injured List With Back Injury
Jeremy Peña

Jeremy Pena Reinstated and Starting on Monday Against Twins
Melquizael Costa

Drops Decision At UFC Vegas 117
Arnold Allen

Bounces Back
Daniel Santos

Suffers Second-Round TKO Loss
MMA

Dohoo Choi Wins His Third Consecutive Fight
Malcolm Wellmaker

Suffers His Second Loss In A Row
Juan Diaz

Scores Second-Round Submission
Christian Edwards

Defeated At UFC Vegas 117
CFB

Transfer Running Back Arnold Barnes Visiting Iowa State on Monday
Modestas Bukauskas

Gets Split-Decision Win
Jhostynxon Garcia

Expected to Join the Pirates on Tuesday
Colt Emerson

Mariners Promoting Top Prospect Colt Emerson to Major Leagues
RANKINGS
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1B
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3B
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OF
SP
RP

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RB
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DEF