On Monday, it was reported that former Alabama LB Reuben Foster was carted off the field in tears after suffering an injury at a Washington Redskins’ practice.

It wasn’t known at the time how severe the injury was, and the Redskins have still not released an official update.

However, on Monday evening, NFL Network’s Ian Rapoport reported that Foster is believed to have torn his ACL and suffered additional damage to his knee:

That obviously doesn’t sound good, and it’s likely Foster will be out for the rest of the season. He also likely faces at least one surgery and a lengthy rehab process.

Foster has recorded 101 tackles in his first two NFL seasons, spent mostly with the San Francisco 49ers.