Naomi Osaka won the U.S. Open to become the first Grand Slam champion from Japan, beating Serena Williams 6-2, 6-4 after the American was penalized one game for a third code violation.
Williams was given three code violations by chair umpire Carlos Ramos, the third leading to an automatic loss of a game in the second set.
Serena Williams was given a second violation, this one for smashing her racket, and again yelled at the chair umpire who had given her the first warning for coaching.
The second code violation cost Williams a point, meaning Naomi Osaka had a 15-0 even before hitting her first serve in the sixth game of the second set.
Williams had been given the first violation by Carlos Ramos for coaching earlier in the set, telling him that she'd "rather lose" than cheat.
She resumed that argument after the second violation, still angry about the first violation. She unwrapped a new racket and then took the court to argue again some more about coaching.
"You owe me an apology," she said. "I have never cheated in my life!"