AceShowbiz - Sydney Sweeney, known for her roles in "Euphoria" and "The White Lotus," is undergoing a remarkable transformation for her portrayal of Christy Martin, a trailblazing female boxer. The actress posted first-look photos on Instagram, showcasing her new dark, curly hair with bangs and a toned physique.

In the images, Sweeney is seen in workout attire, flexing her impressive arm muscles. She has been training rigorously for several months to embody the physical demands of the role. Sweeney expressed her admiration for Martin's resilience and determination, describing her as a "true champion" who faced challenges both inside and outside the ring.

"Well the cats out of the bag thanks to some paps in bushes so here's a little bts from my film im working on right now," she wrote. "Over the past few months, i've been immersed in training to bring to life the story of an incredible woman - a true champion who fought battles both inside and outside the ring. her journey is a testament to resilience, strength, and hope, and I'm honored to step into her shoes to share her powerful story with you all. more to come soon :)."

The biopic will chronicle Martin's journey as one of America's most successful female boxers, from her career beginnings in 1989 to her retirement in 2012. It will also delve into the tragic incident in 2010 when Martin nearly died after an attack by her husband, James Martin.

James Martin was convicted of attempted murder and is currently serving a 25-year prison sentence. Christy Martin has since become a symbol of resilience and empowerment for survivors of domestic violence.

Sweeney is joined by an all-star cast, including Ben Foster as James Martin, Merritt Wever, Ethan Embry, Katy O'Brian, and David Michôd as director. The film's release date is yet to be announced.