J.J. Watt
Watt is one of the best defensive players in history and a dedicated competitor. However, his willingness to put his body on the line means that he has a very long injury list. In 2018, he suffered one of the worst of his career. He tore his meniscus and fractured his leg while facing potential retirement (via Fox News).

The former Defensive Player of the Year refused to bow down and put in the rehab work. He spent another four seasons in the NFL with the Texans and the Cardinals with Pro Bowl appearances. Finally, he retired in 2022 after his body began to fail him. But he lasted longer than anybody expected after he stormed back to health.