NUEVA YORK - 28 de agosto de 2017: Cinco veces campeona del Grand Slam María Sharapova de Rusia en acción durante su partido de la primera ronda del Abierto de Estados Unidos 2017 en el Billie Jean King National Tennis Center en Nueva York - Foto e imagen de stock

NEW YORK - SEPTEMBER 3, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her 2017 US Open round 4 match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 9, 2018: 2018 US Open women's doubles champion CoCo Vandeweghe of United States in action during final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 9, 2018: 2018 US Open women's doubles champion CoCo Vandeweghe of United States celebrates victory after her final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 9, 2018: 2018 US Open women's doubles champion CoCo Vandeweghe of United States in action during final match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 31, 2017: Professional tennis player CoCo Vandeweghe of United States in action during her US Open 2017 second round match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 4, 2017: Professional tennis player Elina Svitolina of Ukraine in action during her US Open 2017 round 4 match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

MIAMI GARDENS, FLORIDA - MARCH 23, 2019: Professional tennis player Bianca Andreescu of Canada in action during her round of 32 match at 2019 Miami Open at the Hard Rock Stadium in Miami Gardens, Florida

NEW YORK - SEPTEMBER 3, 2017: Two times Grand Slam champion Petra Kvitova in action during her US Open 2017 round 4 match at Arthur Ashe Stadium

NEW YORK - AUGUST 31, 2017: Professional tennis player Elina Svitolina of Ukraine in action during her US Open 2017 second round match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 9, 2018: 2018 US Open women's doubles champion CoCo Vandeweghe of United States celebrates victory after her final match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 1, 2018: Professional tennis player Kiki Bertens of Netherlands in action during her round of 32 match at the 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her 2017 US Open round 4 match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 1, 2018: Professional tennis player Kiki Bertens of Netherlands in action during her round of 32 match at the 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her 2017 US Open round 4 match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2017: Two times Grand Slam champion Petra Kvitova in action during her US Open 2017 round 4 match at Arthur Ashe Stadium

NEW YORK - AUGUST 31, 2019: Professional tennis player Bianca Andreescu of Canada in action during the 2019 US Open third round match at Billie Jean King National Tennis Center in New York

NEW YORK - SEPTEMBER 3, 2017: Grand Slam Champion Garbina Muguruza of Spain in action during her US Open 2017 round 4 match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 31, 2019: Grand Slam Champion Caroline Wozniacki of Denmark in action during her 2019 US Open third round match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her 2017 US Open round 4 match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 28, 2017: Five times Grand Slam Champion Maria Sharapova of Russia in action during her US Open 2017 first round match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 31, 2017: Professional tennis player Elina Svitolina of Ukraine celebrates victory after her US Open 2017 second round match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 1, 2018: Five times Grand Slam Champion Maria Sharapova of Russia in action during her 2018 US Open round of 32 match at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2017: Two times Grand Slam champion Petra Kvitova in action during her US Open 2017 round 4 match at Arthur Ashe Stadium

NEW YORK - AUGUST 31, 2017: Professional tennis player Elina Svitolina of Ukraine in action during her US Open 2017 second round match at Billie Jean King National Tennis Center

NEW YORK - AUGUST 27, 2018: Professional tennis player Dayana Yastremska of Ukraine in action during her first round match at the 2018 US Open at Billie Jean King National Tennis Center

NEW YORK - SEPTEMBER 3, 2019: Professional tennis player Elina Svitolina of Ukraine in action during her 2019 US Open quarter-final match at Billie Jean King National Tennis Center in New York

NEW YORK - AUGUST 27, 2019: Professional tennis player Belinda Bencic of Switzerland in action during her 2019 US Open first round match at Billie Jean King National Tennis Center in New York