2016 U.S. Open Tennis Tournament. New York. USA. [Getty Images]

2016 U.S. Open - Day 5 Madison Keys of the United States in action against Naomi Osaka of Japan in the Women"u2019s Singles round three match on Arthur Ashe Stadium on day five of the 2016 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on September 2, 2016 in Flushing, Queens, New York City. (Photo by Tim Clayton/Corbis via Getty Images)"n

Corbis Sport Tim Clayton - Corbis