After being forced to compete with a male athlete, this Minnesota softball player is fighting back: EXCLUSIVE

M.S. had worked for years to become one of the top pitchers on her club softball team. She trained hard, earned her spot and was used to competing under pressure. But when she learned that the teammate she was now expected to compete against for pitching time was actually male, everything changed.

"I just started bawling right away," the 17-year-old told OutKick. "I was pushing myself all season to do my best, and once I found out, I was like, all that work was for nothing — because the boy's still gonna beat me no matter what."

M.S. ultimately made the decision to walk away from her club team. For her, she said, it was a no-brainer.

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

"If there’s a boy on this team, I’m not going to be playing," she said.

That boy (who identifies as a girl) was Champlin Park High School junior Marissa Rothenberger, who took the m...