The first official photo of Sydney Sweeney as Christy Martin is here! Black Bear Pictures shared a glimpse of the actress as the celebrated boxer on July 21 and announced that the biopic will premiere at the Toronto International Film Festival in September.

It's no secret that Sydney Sweeney totally transformed for her upcoming role as boxer Christy Martin. When she posted a video of her training (in response to some ridiculous body shaming), we all saw how powerful she is — but the actress is finally detailing just what went into the transformation.

The "Euphoria" star traded in her signature blonde locks for a mullet to play Martin in the upcoming biopic "Christy."