Sydney Sweeney is getting into character with a new look as she prepares to portray boxer Christy Martin in an upcoming biopic. “Well the cats out of the bag thanks to some paps in bushes so here’s a little bts from my film I’m working on right now,

David Michôd will direct the film, which is currently untitled and follows the true story of Martin’s rise to being one of the most well-known female boxers in 1990s America. Ben Foster, Merritt Wever, Ethan Embry and Katy O’Brian also star in the biopic.

The actress says she's been "immersed in training" to bring the story of the former professional boxer to life