Report: 49ers WR Brandon Aiyuk out for season with torn ACL, MCL in loss to Chiefs
The San Francisco 49ers wide receiver sustained a season-ending knee injury in their 28-18 loss to the Kansas City Chiefs on Sunday, tests confirmed on Monday, according to the NFL Network's Ian Rapoport. Aiyuk has a torn ACL and MCL, and there may be other damage in his knee. He will have surgery in the near future.