Sydney Sweeney‘s taking one last lap around the ring … sharing a ton of pics from behind the scenes of “Christy” and thanking everyone involved.

The actress dropped the pics the day after the film’s wide-release in theaters … with one featuring standing in the ring toe to toe with the film’s namesake, Christy Martin.

The two are wearing complimentary outfits — Christy does love her pink, after all — and, they’re grinning ear-to-ear.

And, it wouldn’t be a boxing flick without a spot of fake blood … and this pic shows Sydney’s face covered in the stuff!

In her caption, Sydney writes filming this movie will stay in her heart forever … ’cause she always walked onto set surrounded by a crew of super supportive pals.

She shouts out Martin for inspiring her to step into her own power … before calling the movie “painful, joyful, resilient, beautiful” and thanking director David Michôd for believing in her.