Carson Palmer
It says a lot about Palmer’s situation that the Bengals called his comeback one of the greatest moments in franchise history. Kimo Van Oelhoffen destroyed the quarterback’s knee in the 2005 playoffs. Surgeons helped reconstruct the knee but they warned Palmer that his career may be over.

But somehow Palmer healed quickly and stormed back for the following season. Incredibly, he tore his ACL again when he played for the Cardinals but he recovered well. This is a terrible injury because it requires a lot of rehabs and the surgery doesn’t always work. Palmer was lucky because an injury this bad can force athletes into retirement.