Oh boy. San Francisco 49ers starting running back Jerrick McKinnon suffered an apparent non-contact injury during the team's workout on Saturday and NFL Network's Ian Rapoport is saying it is of the "concerning" variety. Obviously we have seen countless non-contact injuries turn into torn ACL's (Jordy Nelson in 2016, DeShaun Watson in 2017) which makes this very worrisome. All of a sudden Alfred Morris looks like a major add and Matt Breida a speculative one as well. This would be a real shame if McKinnon were to be seriously injured as he carries some immense PPR upside given his spot in the Kyle Shanahan offense but now things look very dicey.