Injuries are part of football and life in the NFL, although certainly the worst. Most Vikings fans remember Teddy Bridgewater’s injury, dislocating his knee. As a result, he missed the full 2016 season, and it derailed his career as a starter. Undrafted rookie Blake Proehl got hurt in the training camp of his rookie season, spending the season on IR, and teammate Olabisi Johnson tore his ACL in back-to-back preseasons after having a promising start to his career.