Who Should I Start? Isaac Guerendo or Kaleb Johnson

Monday, January 6, 10:31 PM

An MRI exam on Monday morning revealed that San Francisco 49ers rookie running back Isaac Guerendo (ankle, knee) suffered an MCL sprain and an ankle sprain in the loss to the division-rival Arizona Cardinals on Sunday in the Week 18 regular-season finale, according to a source. Guerendo will have plenty of time to heal up in the offseason, and the best news is that he didn't suffer any damage to his ACL. Both of the injuries are to his left leg. The 24-year-old fourth-round pick didn't see much of an opportunity in 2024 until late in the season when both Christian McCaffrey (knee) and Jordan Mason (ankle) were ruled out for the year, but when he did get his chances, he was pretty effective out of the Niners' backfield. Guerendo finished with 5.0 yards per carry for 420 yards and four TDs on 84 carries through 16 games. He should serve as valuable insurance for McCaffrey in 2025.

Monday, May 12, 12:07 PM

Pittsburgh Steelers rookie third-round running back Kaleb Johnson knows he must improve his pass-blocking skills if he wants to earn the coaching staff's trust with the hope of becoming an "every-down back" sooner than later. At 6-foot-1, 225 pounds, Johnson led the Big Ten in rushing yards (1,537), rushing touchdowns (21) and all-purpose yards (1,725) at Iowa in 2024. He's a scheme fit for Pittsburgh's zone-centric offense given his efficient production, writes The Athletic's Mike DeFabo. Even if the 21-year-old doesn't catch a ton of passes, he could stand out in fantasy with his big-play ability. There's opportunity in the Steel City, too, with Najee Harris no longer in town. Johnson is likely going to share touches with Jaylen Warren and Kenneth Gainwell, but he probably has the highest fantasy upside of the trio already.