Champion fighters Gustavo Guty Espadas, Miguel Canto, Freddie Chato Castillo, Lupe Madera and Juan Herrera made Mérida, Yucatán, a boxing capital in the 1970s and 1980s. Born into poverty, they were invincible until time and hard living took their toll. Photographers Víctor Mendiola and Ramiro Chaves made this portrait of the fighters.