Home Naomi Osaka raises the championship trophy after winning the 2018 U.S. Open Women’s Single’s finals at Arthur Ashe Stadium in Flushing Meadows, NY on Saturday, Sept. 8, 2018.<br>(Photo by Chris Trotman/Getty Image) Naomi Osaka raises the championship trophy after winning the 2018 U.S. Open Women's Single's finals at Arthur Ashe Stadium in Flushing Meadows, NY on Saturday, Sept. 8, 2018.<br>(Photo by Chris Trotman/Getty Image)

Naomi Osaka raises the championship trophy after winning the 2018 U.S. Open Women’s Single’s finals at Arthur Ashe Stadium in Flushing Meadows, NY on Saturday, Sept. 8, 2018.
(Photo by Chris Trotman/Getty Image)

Serena Williams returns the ball during the 2018 U.S. Open Women’s Single’s finals at Arthur Ashe Stadium in Flushing Meadows, NY on Saturday, Sept. 8, 2018.<br>(Photo by Chris Trotman/Getty Image)
Naomi Osaka and Serena Williams during the U.S. Open Women’s Singles finals at Arthur Ashe Stadium in Flusing Meadows, NY.<br>(Photo by Chris Trotman/Getty Image)