Riley Gaines fires back at Simone Biles after social media dispute over transgender athletes

Simone Biles surprisingly sparred on social media with OutKick host Riley Gaines Friday, and Gaines has responded. 

Biles took offense to Gaines calling out a Minnesota high school whose softball team won a state championship Friday with a transgender pitcher. 

Marissa Rothenberger, a transgender athlete, threw a shutout to help Champlin Park High School win a state title. 

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Gaines, the host of the "Gaines for Girls...