Νέα Υόρκη - 23 Αυγούστου 2017: Δεκαεννέα φορές Grand Slam πρωταθλητή Roger Federer Ελβετία πρακτικές για μας ανοιχτά 2017 στο Billie Jean βασιλιά Εθνικό Κέντρο Αντισφαίρισης στη Νέα Υόρκη - Φωτογραφίες & Εικόνες Αρχείου

NEW YORK - AUGUST 23, 2017: Nineteen times Grand Slam Champion Roger Federer of Switzerland practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 23, 2017: Nineteen times Grand Slam Champion Roger Federer of Switzerland practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 31, 2017: Grand Slam champion Roger Federer of Switzerland in action during his US Open 2017 round 2 match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 26, 2017: Fifteen times Grand Slam Champion Rafael Nadal of Spain practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 27, 2017: Professional tennis player Jack Sock of United States practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 27, 2017: Professional tennis player Jack Sock of United States practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 26, 2017: Fifteen times Grand Slam Champion Rafael Nadal of Spain practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2016: Grand Slam champion Rafael Nadal of Spain in practice for US Open 2016 at Billie Jean King National Tennis Center

NEW YORK - AUGUST 26, 2017: Fifteen times Grand Slam Champion Rafael Nadal of Spain practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2016: Grand Slam champion Rafael Nadal of Spain in practice for US Open 2016 at Billie Jean King National Tennis Center

FLUSHING, NY - SEPTEMBER 3 Professional tennis player Novak Djokovic during fourth round match at US Open 2013 against Marcel Granollers at Billie Jean King National Tennis Center on September 3, 2013 in Flushing, NY

FLUSHING, NY -SEPTEMBER 2: Seventeen times Grand Slam champion Roger Federer during his fourth round match at US Open 2013 against Tommy Robredo at Billie Jean King National Tennis Center on September 2, 2013 in Flushing, NY

NEW YORK - AUGUST 31, 2017: Grand Slam champion Roger Federer of Switzerland in action during his US Open 2017 round 2 match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2016: Grand Slam champion Rafael Nadal of Spain in practice for US Open 2016 at Billie Jean King National Tennis Center

NEW YORK - AUGUST 29, 2016: Grand Slam champion Rafael Nadal of Spain in action during US Open 2016 first round match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 1, 2019: 20-time Grand Slam champion Roger Federer of Switzerland in action during the 2019 US Open round of 16 match at National Tennis Center in New York

NEW YORK - AUGUST 23, 2017: Nineteen times Grand Slam Champion Roger Federer of Switzerland practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2016: Grand Slam champion Rafael Nadal of Spain in practice for US Open 2016 at Billie Jean King National Tennis Center

FLUSHING, NY - AUGUST 26 Twelve times Grand Slam champion Rafael Nadal during his first round match at US Open 2013 against Ryan Harrison at Arthur Ashe Stadium on August 26, 2013 in Flushing, NY

NEW YORK - AUGUST 24 Professional tennis player David Ferrer practices for US Open 2014 at Billie Jean King National Tennis Center on August 24, 2014 in New York

NEW YORK - AUGUST 27, 2017: Professional tennis player Lucas Pouille of France practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 24 Professional tennis player David Ferrer practices for US Open 2014 at Billie Jean King National Tennis Center on August 24, 2014 in New York

MIAMI GARDENS, FLORIDA - MARCH 27, 2023: Francisco Cerundolo of Argentina celebrates victory after round of 32 match against Felix Auger Aliassime of Canada at 2023 Miami Open at the Hard Rock Stadium in Miami Gardens, Florida, United States

NEW YORK - AUGUST 27, 2018: Grand Slam Champion Stanislas Wawrinka of Switzerland in action during his first round match at the 2018 US Open at USTA National Tennis Center

NEW YORK - AUGUST 27 Professional tennis player Milos Raonic during first round singles match against Thomas Fabbiano at US Open 2013 at Billie Jean King National Tennis Center on August 27, 2013 in New York

NEW YORK - AUGUST 24: Six times Grand Slam champion Novak Djokovic practices for US Open 2014 at Billie Jean King National Tennis Center on August 24 , 2014 in New York

NEW YORK - AUGUST 31, 2015: Nine times Grand Slam champion Novak Djokovic in action during first round match at US Open 2015 at National Tennis Center in New York

NEW YORK - AUGUST 23, 2017: Nineteen times Grand Slam Champion Roger Federer of Switzerland practices for US Open 2017 at Billie Jean King National Tennis Center in New York

NEW YORK - September 2, 2014: Professional tennis player Roberto Bautista Agut during round 4 match at US Open 2014 against Grand Slam champion Roger Federer at Arthur Ashe Stadium

NEW YORK - SEPTEMBER 4, 2017: Grand Slam champion Rafael Nadal of Spain in action during his US Open 2017 round 4 match at Billie Jean King National Tennis Center

FLUSHING, NY - SEPTEMBER 7: Professional tennis player Richard Gasquet during his semifinal match at US Open 2013 against twelve times Grand Slam champion Rafael Nadal at Arthur Ashe Stadium on September 7, 2013 in Flushing, NY