Who Should I Start? Isaac Guerendo or Kaleb Johnson

Friday, June 6, 12:54 PM

San Francisco 49ers running back Isaac Guerendo (ankle, knee) has been taking part in voluntary organized team activities this spring after injuring his MCL and spraining his ankle in the Week 18 regular-season finale last year. Guerendo, a fourth-round pick (129th overall) in 2024, should be a full-go for the start of mandatory minicamp on June 10. All-Pro Christian McCaffrey (knee) is also back and ready to roll after missing the majority of the 2024 campaign, so Guerendo will enter the 2025 season as the backup, but Jordan Mason was traded to the Minnesota Vikings and Elijah Mitchell left in free agency. The 24-year-old Guerendo had 5.0 yards per carry on his 84 rushing attempts last year for 420 yards and four touchdowns in 16 games (three starts), adding 15 catches for 152 yards through the air. Consider him a high-upside handcuff behind the injury-prone CMC.

Tuesday, July 15, 6:48 PM

The Athletic's Mike DeFabo writes that rookie third-round running back Kaleb Johnson is an ideal scheme fit for Pittsburgh Steelers coordinator Arthur Smith's offense after Iowa alum excelled on wide-zone runs with the Hawkeyes. Although the Steelers weren't very efficient, only three teams ran the football more in 2024. The 21-year-old Johnson has plenty of competition in Pittsburgh's backfield in his rookie campaign with Jaylen Warren and Kenneth Gainwell in the fold, but he profiles as the team's back of the future and should get more chances out of the backfield as the season plays out. Johnson has a physical, bruising style and is also patient, which is reminiscent of former RB Najee Harris, but he should produce more big plays after racking up 1,537 yards and 21 touchdowns on 240 carries in his final season at Iowa. He'll be more attractive in standard-scoring fantasy formats as an RB3/flex candidate.