Nowy Jork - 8 września 2015: Dwadzieścia jeden razy Grand Slam mistrz Serena Williams w akcji podczas jej ćwierćfinałowy mecz z Venus Williams w nas otwarte 2015 w National Tennis Center w Nowym Jorku - Zdjęcie stockowe & obraz

NEW YORK - AUGUST 31, 2015: Twenty one times Grand Slam champion Serena Williams in action during first round match at US Open 2015 at 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

NEW YORK - AUGUST 27, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open first round match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 31, 2015: Twenty one times Grand Slam champion Serena Williams in action during first round match at US Open 2015 at National Tennis Center in New York

NEW YORK - SEPTEMBER 6, 2015: Twenty one times Grand Slam champion Serena Williams in action during her round four match at US Open 2015 at National Tennis Center in New York

NEW YORK - AUGUST 22, 2018: 23-time Grand Slam champion Serena Williams practices for the 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at National Tennis Center in New York

NEW YORK - AUGUST 30, 2016: Grand Slam champion Serena Williams in action during first round 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

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at 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

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at 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

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at National Tennis Center in New York

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at National Tennis Center in New York

NEW YORK- SEPTEMBER 1: Sixteen times Grand Slam champion Serena Williams during fourth round match at US Open 2013 against Sloane Stephens at Billie Jean King National Tennis Center on September 1, 2013 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

NEW YORK - AUGUST 30, 2016: Grand Slam champion Serena Williams in action during first round match at US Open 2016 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 23, 2018: Grand Slam champion Serena Williams practices for the 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 8, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open final match against Naomi Osaka at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 8, 2015: Twenty one times Grand Slam champion Serena Williams in action during her quarterfinal match against Venus Williams at US Open 2015 at National Tennis Center in New York

NEW YORK - SEPTEMBER 6, 2015: Grand Slam champion Venus Williams in action during her fourth round match at US Open 2015 at National Tennis Center in New York

NEW YORK - SEPTEMBER 6, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open semi-final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 5, 2016: Grand Slam champion Serena Williams of United States in action during 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

NEW YORK- SEPTEMBER 1: Grand Slam champion Serena Williams celebrates victory after fourth round match at US Open 2013 against Sloane Stephens at Billie Jean King National Tennis Center on September 1, 2013 in New York

NEW YORK - AUGUST 27, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open first round match at Billie Jean King National Tennis Center

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

NEW YORK - SEPTEMBER 8, 2018: 23-time Grand Slam champion Serena Williams broke tennis racket during her 2018 US Open final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 8, 2018: 23-time Grand Slam champion Serena Williams in action during her 2018 US Open final match against Naomi Osaka at Billie Jean King National Tennis Center

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

NEW YORK - SEPTEMBER 6, 2018: Professional tennis player Naomi Osaka celebrates victory after 2018 US Open semi-final match at Billie Jean King National Tennis Center