Boxer Christy Martin Stoked on Sydney Sweeney Casting ... Ready to Train Together!!!
Christy Martin's happy Sydney Sweeney's lacing up her boxing gloves ... saying she's thrilled Syd's playing her in a new biopic, and she wants to make sure her ring moves look authentic.
The boxing legend tells TMZ ... she's excited for Syd's performance, especially because she has a background in MMA and combat sports -- and says the actor's performance can prove dynamite comes in small packages!
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Martin maintains she had no say in casting, and while she hasn't spoken to Sweeney yet ... she's anxious to let her know how honored she is she's taking the role.
Christy says she'll definitely be involved with Sydney's boxing training, specifically to help the star with her left hook ... giving her championship-level tools for the flick.