KOMAL SINGH

Sydney Sweeney's Knockout Transformation for the Christy Martin Biopic

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Sydney Sweeney gained over 30 pounds to embody legendary boxer Christy Martin in an upcoming biopic

Her intense regimen packed both speed and strength: weight-training in mornings and evenings, kickboxing in between

My body was completely different crazy strong.” She went from size 23 jeans to 27, with noticeable changes in form

Director David Michôd praised her dedication: “She’d arrive every day like a ray of sunshine, even as she fought

The first official photo shows Sydney fully transformed: dark curly hair, boxing gloves on, muscle tone front and center

Her physical makeover followed not just technique, but fight-speed authenticity drawing on a childhood spent doing grappling, kickboxing and more

The transformation speaks to a deeper narrative Sweeney becoming Christy, a pioneering champion who survived personal trauma on and off the ring

It’s more than physical change in this role, Sweeney brings to life a story of resilience, defiance, and survival against all odds

Retitled Christy, the film world premieres at the Toronto International Film Festival this September