Yes, really.
www.startribune.com/jury-s-award-to-transgender-woman-rejected-by-football-team-is-a-minnesota-first/503365442/
"This week, a Dakota County jury found that the team and the league discriminated against Ginther because she is transgender, a violation of the Minnesota Human Rights Act. Ginther was awarded $10,000 for emotional distress and $10,000 in punitive damages.
Ginther, 46, transitioned to being a woman from 2014 through 2015, losing her marriage and many friends in the process. Wanting to rebuild her life in 2016, she searched for a supportive social group to join. She turned to the pages of Lavender, a Minnesota LGBT magazine, and found that the Vixen team seemed to be a welcoming organization. "
"After her transition, Ginther legally changed her name and the gender marker on her birth certificate. What she didn’t know, she said, was that the IWFL had changed its eligibility policy in 2012, requiring players to certify that they are and always have been legally and medically female."
So Ginther was not allowed to play by league rules, but still got compensation against the amateur team.
Also American football is notorious for injuries, it's pretty much the prototypical 'no males for safety reasons' sport.
There's the inevitable 'towering over their female teammates' photo.