NEW YORK CITY - SEPTEMBER 8, 2014: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building in New York - Kuvapankin valokuva ja kuva

NEW YORK CITY - SEPTEMBER 8, 2014: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building in New York

NEW YORK CITY - SEPTEMBER 8, 2014: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building in New York

NEW YORK CITY - SEPTEMBER 8: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building on September 8, 2014

NEW YORK CITY - SEPTEMBER 8, 2014: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building in New York

NEW YORK CITY - SEPTEMBER 8: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building on September 8, 2014

NEW YORK CITY - SEPTEMBER 8, 2014: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building in New York

NEW YORK CITY - SEPTEMBER 8: US Open 2014 champion Serena Williams posing with US Open trophy on the top of Empire State building on September 8, 2014

NEW YORK CITY - SEPTEMBER 9, 2013: US Open 2013 champion Serena Williams posing with US Open trophy in Central Park

NEW YORK CITY - SEPTEMBER 9: US Open 2013 champion Serena Williams holding US Open trophy in Central Park on September 9, 2013

NEW YORK CITY - SEPTEMBER 9, 2013: US Open 2013 champion Serena Williams posing with US Open trophy in Central Park

NEW YORK CITY - SEPTEMBER 9: US Open 2013 champion Serena Williams holding US Open trophy in Central Park on September 9, 2013

NEW YORK CITY - SEPTEMBER 9, 2013: US Open 2013 champion Serena Williams posing with US Open trophy in Central Park

NEW YORK CITY - SEPTEMBER 9, 2013: US Open 2013 champion Serena Williams posing with US Open trophy in Central Park

Venus Williams in the press room for The 2006 ESPYS Awards - PRESS ROOM, The Kodak Theatre, Los Angeles, CA, July 12, 2006. Photo by: Michael Germana/Everett Collection

MELBOURNE, AUSTRALIA - JANUARY 27, 2019: 2 times Grand Slam Champion Naomi Osaka of Japan posing with Australian Open trophy at Brighton Beach in Melbourne after her victory at 2019 Australian Open

MELBOURNE, AUSTRALIA - JANUARY 22, 2019: Grand Slam Champion Serena Williams of USA during press conference after her loss in 2019 Australian Open quarter-final match against Karolina Pliskova

NEW YORK - SEPTEMBER 8, 2015: Oprah Winfrey attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2015: Oprah Winfrey attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2015: CBS anchor Gail King attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 27, 2018: American television personality co-anchor of CBS This Morning Gayle King (R) with friend on the blue carpet before US Open 2017 opening night ceremony at Tennis Center

NEW YORK - SEPTEMBER 8, 2015: Oprah Winfrey attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2015: Oprah Winfrey attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 27, 2018: American soul singer and songwriter Gladys Knight on the blue carpet before 2018 US Open opening night ceremony at Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2015: Oprah Winfrey attends US Open 2015 tennis match between Serena and Venus Williams at USTA Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 28, 2017: Co-anchor of CBS This Morning Gayle King on the blue carpet before US Open 2017 opening night ceremony at Tennis Center in New York

NEW YORK - AUGUST 26 TV anchor Robin Roberts at the red carpet before US Open 2013 opening night ceremony at USTA Billie Jean King National Tennis Center on August 26, 2013 in New York

NEW YORK - AUGUST 28, 2017: Co-anchor of CBS This Morning Gayle King on the blue carpet before US Open 2017 opening night ceremony at Tennis Center in New York