Sweeney previewed her performance as boxer Christy Martin: "Her journey is a testament to resilience, strength, and hope."

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,

Sydney Sweeney is playing professional boxer Christy Martin, who competed in the 1990s and 2000s, in an upcoming biopic

Hollywood star Sydney Sweeney is all set to essay the role of boxer Christy Martin in an upcoming biopic. In the film, she sports a 1990s mullet and has added some muscle to play the former athlete. The actor shared a few pictures of her avatar as the boxer in an Instagram post.

Sydney Sweeney recently shared an unrecognizable photo on Instagram for an upcoming film of hers. While fans are used to her usual blond hair, Sweeney sports a dark brown color in the picture, accompanied by wavy bangs.

Sydney Sweeney is undergoing quite the transformation for her next film role. The 27-year-old is set to star in a still-untitled biographical sports drama about boxer Christy Martin, and it's clear she's already physically embodying the role.

Sydney Sweeney is playing professional boxer Christy Martin, who competed in the 1990s and 2000s, in an upcoming biopic