NEW YORK CITY - SEPTEMBER 9, 2013: US Open 2013 champion Serena Williams posing with US Open trophy in Central Park - ストックフォト＆画像

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

NEW YORK CITY - SEPTEMBER 10, 2017: US Open 2017 champion Sloane Stephens of United States 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

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 10, 2017: US Open 2017 champion Sloane Stephens of United States 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

NEW YORK CITY - SEPTEMBER 10, 2017: US Open 2017 champion Sloane Stephens of United States posing with US Open trophy in Central Park

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 10, 2017: US Open 2017 champion Sloane Stephens of United States posing with US Open trophy in Central Park

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 10, 2017: US Open 2017 champion Sloane Stephens of United States posing with US Open trophy in Central Park

NEW YORK - SEPTEMBER 8, 2018: 2018 US Open champion Naomi Osaka of Japan poses with US Open trophy on the Top of the Rock Observation Deck at Rockefeller Center in New York

NEW YORK CITY - SEPTEMBER 10, 2017: US Open 2017 champion Sloane Stephens of United States posing with US Open trophy in Central Park

NEW YORK CITY - SEPTEMBER 10, 2017: US Open 2017 champion Sloane Stephens of United States posing with US Open trophy in Central Park

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

NEW YORK - SEPTEMBER 8, 2019: 2019 US Open champion Bianca Andreescu of Canada poses with US Open trophy on the Top of the Rock Observation Deck at Rockefeller Center in New York

NEW YORK - SEPTEMBER 5, 2016: Grand Slam champion Serena Williams of United States celebrates victory after her round four match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 5, 2016: Grand Slam champion Serena Williams of United States celebrates victory after her round four match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2018: 2018 US Open champion Naomi Osaka of Japan posing with US Open trophy during trophy presentation after her final match victory against Serena Williams

NEW YORK - SEPTEMBER 3, 2016: Grand Slam champion Serena Williams of United States celebrates victory after her round three match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 5, 2016: Grand Slam champion Serena Williams of United States celebrates victory after her round four match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 2, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open round of 16 match at Billie Jean King National Tennis Center

MELBOURNE, AUSTRALIA - JANUARY 31, 2016: Grand Slam champion Angelique Kerber of Germany posing in Government House with championship trophy after victory at Australian Open 2016 in Melbourne

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

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

NEW YORK - SEPTEMBER 5, 2016: Grand Slam champion Serena Williams of United States celebrates victory after her round four match at US Open 2016 at Billie Jean King National Tennis Center in New York

MELBOURNE, AUSTRALIA - JANUARY 31, 2016: Grand Slam champion Angelique Kerber of Germany posing in Government House with championship trophy after victory at Australian Open 2016 in Melbourne

NEW YORK - SEPTEMBER 8, 2018: 2018 US Open champion Naomi Osaka of Japan posing with US Open trophy during trophy presentation after her final match victory against Serena Williams

FLUSHING, NY - SEPTEMBER 8: US Open 2013 champion Serena Williams holding US Open trophy after her final match win against Victoria Azarenka at Billie Jean King National Tennis Center on September 8, 2013 in Flushing, NY

NEW YORK - SEPTEMBER 11, 2016:Two times Grand Slam champion Angelique Kerber of Germany posing with US Open trophy after her victory at US Open 2016 at Billie Jean King National Tennis Center