In a controversial final, Japan's Naomi Osaka stunned Serena Williams of USA to lift the women's single titles of the US Open 2018.

Osaka went on to beat Williams in straight sets 6-2, 6-4.

The match saw some dramatic scenes at the Grand Slam final after an angry Williams accused the umpire of being a "thief".

Williams was given a game penalty for her outburst, which also followed racquet smashing and another code violation as Osaka kept her focus to become the first Japanese to win a Grand Slam.