Undefeated (movie, 2003)

Lex 'El Animal' Vargas is a promising Portorican boxer in Queens, but lacks ambition to aim for the big career. That changes after his brother Paulie is accidentally shot dead by a teenager in an amateur hold-up on their late dad's shop, which he now closes to turn professional boxer. His star rises fast, but success brings its own problems, as he he lacks experience to handle professionals and resist the abuse they and his ghetto past entourage make of his generous nature.