Fans of Euphoria star Sydney Sweeney received an update on her latest project this week. Earlier this year it was announced that she would play Christy Martin in an upcoming film.

Sweeney ditched her usual look that fans are used to seeing on screen to properly portray Martin, who finished her boxing career with a 49-7 record. Not only has the “Anyone But You” actress traded in her blonde hair for a much shorter brunette hairstyle, she’s also been bulking up in the gym.

On Monday, Sweeney shared a photo of her and Martin on the set of Martin’s biopic. Fans got a good look at Sweeney’s new hairstyle.

Sweeney’s post on Instagram included a heartfelt message about Martin’s story. She clearly has great admiration for the first female boxer ever elected to the Nevada Boxing Hall of Fame.

“I don’t usually write much in my captions, but I think this film and this experience needs more than just a few words,” Sweeney wrote. “We finished filming Christy Martin’s story and it was one of the most emotional and transformative experiences of my life. Christy’s journey is so deeply inspiring and having her by my side throughout this process has been nothing short of surreal. There were moments.” I took a look at her standing at the monitors cheering us on and I got so emotional knowing what she went through to be there in that moment – I did it wants to cry.

“…This story is so much bigger than just a movie. It is a testament to resilience, survival and the strength to keep fighting. I can’t wait for you all to see it – not just because I’m proud of the transformation and the work I’ve put into it, but because Christy’s story deserves to be told.