49ers sign Johnson to practice squad

The 49ers signed RB Kerryon Johnson to the practice squad. Johnson was a 2nd-round pick just 3 years ago but hasn't been fantasy relevant since his rookie season. He averaged 3.6 and then 3.5 yards per carry for the Lions in 2019 and 2020 -- and was cut by the Eagles this summer. There's obviously opportunity in San Francisco after RB Raheem Mostert's season-ending knee injury, but we wouldn't bet on Johnson capitalizing on it. He's only worth stashing in deep fantasy leagues.