The WNBA is being pulled into a fight over who counts as a woman for the purposes of playing in the league, an awkward moment for a business trying to grow.

• League officials are wrestling with eligibility rules for transgender players.
• The question of how to define eligibility has no settled answer inside the league.
• Criticism is also falling on Caitlin Clark, the league's biggest draw.
• The fight lands while the WNBA is trying to turn new attention into lasting money.

Outlook: Expect the eligibility question to stay unresolved and keep generating political heat around the league.