The list over Minnesota running backs suffering from or rehabbing from a knee injury this spring continues to grow.

According to the Pioneer Press, true freshman running back Jason Williamson has suffered a serious knee injury. He sustained the injury on Tuesday during practice and limped off the field.

KSTP-TV reported that the injury is fairly severe, saying that Williamson endured an ACL tear. The injury and rehabilitation process likely means the running back will miss his freshman season and will likely be redshirted in his first season with the Gophers.

Williamson was an early enrollee this spring as a member of Minnesota’s 2019 recruiting class.

Star backs Rodney Smith and Shannon Brooks suffered ACL injuries last season, missing a chunk of the season and are still recovering. Both are expected to be ready for the 2019 season, providing the Gophers with more depth at running back.

Minnesota also returns rising sophomore Mo Ibrahim, who rushed for over 1,000 yards last season, leading the team.

The Gophers round out the spring season next Saturday when they hold their annual spring game. The situation at running back will probably look much different in the fall than it does this spring.