Enes Kanter Freedom praised the new champions, ripped the league office, and renewed his 2027 WNBA Draft threat.
Golden State beat the Atlanta Dream 68-63 in the first Game 7 in WNBA Finals history.
Gabby Williams scored 30 points to seal the first title in only the team's second season.
"I'm so proud of all these hardworking, talented women," Kanter said in his statement.
"I just wish they had better leadership," he said. The focus should be on the court, not off-court controversies.
"I'll see you ladies at the 2027 WNBA Draft. Rules are rules!"
The WNBA's agreement says only women are eligible. Commissioner Engelbert told lawmakers Kanter is ineligible.
Kanter attacked coach Stephanie White after she declined to take a stand on trans athletes in women's sports.
Megan Rapinoe called the campaign "grifting" and "embarrassing" on a podcast this week.
Kanter was ejected from a Sky game in August and left an arena in Atlanta during the Finals.
Engelbert retires at the end of 2026. Her successor will inherit the eligibility question.
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