Naomi Osaka is the US open champion after defeats Serena Williams 6-2, 6-4,after the American was penalized one game for a third code violation after dramatic argument between Williams and chair umpire.
Williams and her coach, were accused of speaking during the match. Williams was warned for coaching, then suspended a point when accused again. Late in the second set, she was penalized again, losing a game. That gave Osaka a 5-3 lead.
Osaka winning her first grand slam ,The 20 years old player is the first Japanese player to win a Grand Slam singles title.