Who Should I Start? Sincere McCormick or Sione Vaki

Friday, August 29, 8:34 AM

The San Francisco 49ers have signed running back Sincere McCormick to their practice squad on Thursday. McCormick quickly finds a new team after being cut by the Las Vegas Raiders earlier in the week. The 24-year-old figures to serve as depth behind Christian McCaffrey, Brian Robinson Jr., and Isaac Guerendo (shoulder) in the backfield. Last season, McCormick rushed 39 times for 183 yards in five games (two starts) with the Raiders. There isn't going to be fantasy value here unless the 49ers suffer a few injuries in the backfield.

Sunday, August 17, 10:00 AM

Detroit Lions running back Sione Vaki rushed for 30 yards on five carries in his 2025 preseason debut against the Miami Dolphins on Saturday. Vaki has been dealing with a lingering hamstring injury throughout training camp, but he returned to practice in full earlier this week. The second-year back is "showing good vision and wiggle," according to Colton Pouncy of The Athletic. A fourth-round pick out of Utah in 2024, Vaki is competing with veteran Craig Reynolds for the RB3 job in Detroit behind Jahmyr Gibbs and David Montgomery. Vaki is still new to the running back position after playing mostly as a safety in college, so his development could take longer than the average young player. With Gibbs and Montgomery ahead of him on the depth chart, Vaki is highly unlikely to be fantasy-relevant in 2025.