San Francisco 49ers sign running back Ke'Shawn Vaughn, waive Zack Johnson to make room.

The San Francisco 49ers signed running back Ke'Shawn Vaughn to a one-year deal to bolster their running back depth, waiving offensive lineman Zack Johnson to make room. Vaughn, 28, has played in 46 NFL games over five years, recording 388 rushing yards and two touchdowns. He previously spent time with the Buccaneers and Patriots before joining the 49ers briefly in 2024.