Who Should I Start for Fantasy Football Week 4? Alvin Kamara, J.K. Dobbins, Jacory Croskey-Merritt, Breece Hall, Nick Chubb, D'Andre Swift, Rhamondre Stevenson, Kyren Williams, Jeremy McNichols

New Orleans Saints running back Alvin Kamara rushed 18 times for just 42 yards and added one catch for 14 yards on two targets in the blowout loss to the Seahawks. His 50 rushing attempts through three weeks rank ninth in the league, though his 3.3 targets per game are well below his career average of 6.25.

Kamara's usage on the ground remains high despite a limited role in the passing game, and the Saints face a Bills defense in Week 4 that recently allowed De'Von Achane seven receptions for 36 yards and 5.2 yards per carry on the ground.

Negative game script may continue, but Kamara is expected to see a mix of carries and targets in both the run and passing game, keeping him relevant in fantasy lineups.

Denver Broncos running back J.K. Dobbins has been a "real good addition" for the team this year, head coach Sean Payton said. Zac Stevens of DNVR Sports writes that it's "clear" that Payton is a big fan of Dobbins, who has been the Broncos' clear RB1 through three weeks over rookie second-rounder RJ Harvey.

Dobbins has seen double-digit carries in all three games of the year so far and has run for at least 63 yards each week. The 26-year-old has also scored on the ground in all three weeks. His best game so far came in the Week 3 loss to the Los Angeles Chargers, as he ran for 83 yards and a score on a season-low 11 rushing attempts.

He had nine more rushing attempts than Harvey last weekend and has outcarried the UCF product 41 to 13. Harvey has one more catch than Dobbins through three weeks. Dobbins isn't going away anytime soon, and he'll be in play as an RB2 in Week 4 in a plus matchup against the Cincinnati Bengals.

Washington Commanders rookie running back Jacory Croskey-Merritt (knee) returned to practice Thursday after sitting out Wednesday, putting him on track to play in Sunday's road matchup against the Atlanta Falcons. The rookie has been an early bright spot, leading the Commanders in rushing attempts (22), yards (125), and touchdowns (two) despite not yet starting a game.

Washington has employed a committee approach, but Croskey-Merritt has held a slight edge in carries as the team eases him into NFL action. While his efficiency and red-zone usage are encouraging, the Falcons rank 10th in the league against the run, and Croskey-Merritt has not been heavily involved as a receiver, which limits his upside.

For fantasy purposes, he's best left on benches in standard formats but can be considered a deeper-league flex given his growing role in Washington's backfield.

New York Jets running back Breece Hall failed to make an impact in Sunday's 29-27 loss to the Tampa Bay Buccaneers, totaling 21 yards on nine totes and an additional 31 through the air on 4-of-6 receiving.

With New York pigeon-holing itself into a game plan centered around short passes, the 24-year-old couldn't get anything going on the ground, marking his second straight outing with fewer than 30 rushing yards. Perhaps even more concerning, he's losing out on playing time due to his ineffectiveness as a pass blocker. Hall is a talented runner, and his receiving work should keep him in the RB2 mix more often than not.

However, sharing his workload in an unstable Jets offense means his fantasy floor -- and ceiling -- are lower than in seasons past. He'll try to rebound in a dream Week 4 meeting with the lowly Dolphins' rush defense.

When asked about the team's ball security on Monday, New England Patriots head coach Mike Vrabel said the plan this week is to "practice the crap out of it." Running back Rhamondre Stevenson lost two crucial fumbles in the 21-14 loss to the Pittsburgh Steelers in Week 3 on Sunday, including one on the one-yard line in the third quarter.

Stevenson has a history of ball-security issues, and it could cost him a key role in New England's backfield moving forward despite his big Week 2 performance. The 27-year-old had only four carries for 18 yards and caught all three of his targets for 38 yards through the air against Pittsburgh.

Rookie TreVeyon Henderson was unable to take advantage on Sunday against the Steelers, but he could be New England's lead back in Week 4 against the Carolina Panthers. Stevenson will be a pretty risky RB3/flex who could be punished for putting the ball on the ground.