Arian Foster
Foster was one of the best-undrafted players ever. He joined the Texans in 2009 but he had a serious fear of losing his job in his sophomore year. That’s why he played through the pain barrier and failed to disclose his torn meniscus. This is exactly as crazy as it sounds because it must have been agonizing for the running back.

But this story gets even crazier because he led the NFL in rushing yards. It didn’t matter that his knee cartilage caused him brutal pain. Foster broke records and kept running despite the injury. Furthermore, it’s amazing that he retained his pace and mobility because a torn meniscus is no joke (via NESN).