Danny Trejo's big break came about partly because of a prison tattoo on his chest, depicting a woman wearing a sombrero. Thanks to that distinctive mark, a screenwriter recognized him as a champion boxer. Carlos Jasso/AP hide caption

itoggle caption Carlos Jasso/AP

Rubin "Hurricane" Carter, the former boxer who spent years wrongfully incarcerated for murder, has died at age 76. his life inspired a Bob Dylan protest song and the film Hurricane, starring Denzel Washington. Paul Kane/Getty Images hide caption

itoggle caption Paul Kane/Getty Images

March 1, 1997: Hector "Macho" Camacho watches as "Sugar" Ray Leonard falls to the canvas during action in the fifth round of their fight. Charles Rex Arbogast /AP hide caption

itoggle caption Charles Rex Arbogast /AP