Nowy Jork - 31 sierpnia 2017: Grand Slam Championem Roger Federer Szwajcarii w akcji podczas jego nas otwarte 2017 okrągły 2 mecz o Billie Jean King National Tennis Center - Zdjęcie stockowe & obraz

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 5, 2015: Seventeen times Grand Slam champion Roger Federer of Switzerland in action during his third round match at US Open 2015 at National Tennis Center in NY5

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 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 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 6, 2017: Grand Slam champion Roger Federer of Switzerland during his US Open 2017 quarterfinal match against Juan Martin Del Potro at Arthur Ashe Stadium

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 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 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 6, 2017: Grand Slam champion Roger Federer of Switzerland during his US Open 2017 quarterfinal match against Juan Martin Del Potro at Arthur Ashe Stadium

NEW YORK - SEPTEMBER 6, 2017: Grand Slam champion Roger Federer of Switzerland during his US Open 2017 quarterfinal match against Juan Martin Del Potro at Arthur Ashe Stadium

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 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 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 2, 2018: 17-time Grand Slam champion Rafael Nadal of Spain in action during his 2018 US Open round of 16 match at Billie Jean King National Tennis Center

NEW YORK- AUGUST 31 Seventeen times Grand Slam champion Roger Federer during third round match at US Open 2013 against Adrian Mannarino at Billie Jean King National Tennis Center on August 31, 2013 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

MIAMI GARDENS, FLORIDA - MARCH 27, 2019: Grand Slam champion Roger Federer of Switzerland in action during his round of 16 match at 2019 Miami Open at the Hard Rock Stadium in Miami Gardens, Florida

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 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 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 29, 2017: Grand Slam champion Roger Federer of Switzerland in action during his US Open 2017 first round match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 6, 2017: Grand Slam champion Roger Federer of Switzerland during his US Open 2017 quarterfinal match against Juan Martin Del Potro at Arthur Ashe Stadium

NEW YORK - SEPTEMBER 6, 2017: Grand Slam champion Roger Federer of Switzerland during his US Open 2017 quarterfinal match against Juan Martin Del Potro at Arthur Ashe Stadium

NEW YORK - AUGUST 21, 2018: Professional tennis player Alexander Zverev of Germany in practice for 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - AUGUST 29, 2017: Grand Slam champion Roger Federer of Switzerland in action during his US Open 2017 first round match at Billie Jean King National Tennis Center