Oscar-winning actor Russell Crowe has dislocated his shoulder while training to play a boxer in his latest film.
The Academy passed over Crowe's performance as Jack Aubrey
The New Zealand-born star will have to have arthroscopic surgery to repair the injury, Universal Studios said.
Filming of the picture, Cinderella Man, is likely to be put back a month, until the beginning of April.
The 39-year-old, star of Master and Commander, hurt the same shoulder while training for Flora Plum, and was forced to drop out of the film.
The studio said the injury was not in exactly the same place as the one sustained while preparing for Flora Plum, a Jodie Foster movie.
Cinderella Man is based on the true story of 1930s boxer Jim Braddock, who beat heavyweight champion Max Baer in a titanic struggle in 1935.
Mr Crowe won a best actor Oscar for his role as disgraced Roman general Maximus in Gladiator.
He had been tipped for an Oscar nomination for playing Captain Jack Aubrey in Master and Commander, but was passed over by the Academy.