The Yeah! singer portrays Sugar Ray Leonard in Hands of Stone, and a new trailer for the movie suggests the project will go beyond the ring and focus on the personal lives of the U.S. boxing great and his longtime rival Roberto Duran, played by Edgar Ramirez.

And Usher won't be the only one baring all in the film - sexy Cuban actress Ana de Armas, who plays Miles Teller's girlfriend in new movie War Dogs, strips for sex scenes with Ramirez.

Hands of Stone, which also features Robert De Niro, Ellen Barkin, and John Turturro, hits cinemas in the U.S. next week (26Aug16).