Sydney Sweeney enters the ring – and the role of a lifetime – as new behind-the-scenes photos from the set of the Christy Martin biopic reveal.

Sweeney, known for her roles in Euphoria and The White Lotus, embraces a new athletic transformation to portray the legendary boxer, proving her commitment to the character with a physical transformation that she almost unrecognizable.

Sydney Sweeney’s commitment to this role goes beyond just training; She dyed her hair a deep, rich brown and styled it in loose curls – a complete departure from her signature blonde, sleek look.

Sydney Sweeney spotted on set of Christy Martin biopic

In BTS photos obtained from TMZPink seems to be the theme of the scene.

Sweeney wears a pink sleeveless Christy Martin shirt that shows off her toned arm muscles, paired with matching pink boxing shoes. To add to the bold aesthetic, a pink sports car can be seen in the background.

Earlier this month, Sweeney shared snaps on Instagram highlighting her new look and muscular figure, a result of the intensive training regimen she has undertaken to fully embody Martin’s powerful presence.

“Well the cats are out of the bag thanks to some papules in the bushes so here are some BTS from my movie I’m working on,” she wrote in the caption at the time.

Sydney Sweeney is excited to take on the role of Christy Martin

In an interview with deadlineSweeney shared her excitement for the upcoming role and revealed that she has nearly a decade of experience in grappling and kickboxing. She expressed her desire to get back in the ring and undergo rigorous training to prepare for the challenging role of Martin.

“Over the past few months, I have been training intensively to bring to life the story of an incredible woman – a true champion who fought battles both in and out of the ring.”

“Her journey is a testament to resilience, strength and hope, and I am honored to follow in her footsteps and share her powerful story with all of you. More to come soon,” the actress added.

Sydney Sweeney transforms into Christy Martin

In her Oct. 16 post, Sweeney is pictured in gray sweatpants and a red tank top, flexing her toned arms for the camera and highlighting her impressive physique as she takes on the role of Martin.

Helmed by acclaimed filmmaker David Michôd – known for intense dramas such as Animal Kingdom and The King – the currently untitled project will explore the true story of Martin’s rise to become the most famous female boxer in 1990s America.

Producers have dubbed Martin the “Female Rocky,” highlighting her resilience and impact on the sport.

Sydney Sweeney has experience in kickboxing

Sweeney is no stranger to the rigorous training required for a role like this. She brings her experience in grappling and kickboxing to her portrayal of Martin.

“I fought and did kickboxing from the age of 12 to 19. “I’m itching to get back in the ring, train and change my body,” she said deadline. “Christy’s story is not an easy story, it is physically and emotionally demanding, there is a lot of weight to carry. But I love challenging myself. Christy Martin not only legitimized female boxing, she overcame gender stereotypes and fought through emotional, physical, and financial abuse.”

The actress added: “I have a passion for the fighting world. Christy’s story sheds light on her incredible rise to the top while showing the behind-the-scenes struggles of fame. I feel compelled to tell a story about a woman who faced so much adversity and didn’t allow herself to be defeated. It’s powerful and emotional.”

More about boxing legend Christy Martin

A naturally gifted fighter, Martin’s life changed dramatically when she met her manager – and later husband – Jim Martin in 1989. She broke the barriers of a male-dominated sport, became the first woman to sign with legendary promoter Don King, and made history when she became the only female boxer to appear on the cover of Sports Illustrated.

Her charisma, striking looks and strong resilience in the ring earned her a loyal fan base and earned her the title of welterweight champion. But behind her cultivated public image lies a story marked by personal struggles, toxic relationships and a horrific attempt on her life.

The upcoming film will star Sydney Sweeney alongside Ben Foster, Merritt Wever, Jess Gabor, Katy O’Brian, Ethan Embry and Chad L. Coleman.