![Martina Hingis (L) of Switzerland and Sania Mirza of India show off their trophy after defeating Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the woman's double final match at Martina Hingis (L) of Switzerland and Sania Mirza of India show off their trophy after defeating Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the woman's double final match at](https://c8.alamy.com/comp/TYR0XJ/martina-hingis-l-of-switzerland-and-sania-mirza-of-india-show-off-their-trophy-after-defeating-casey-dellacqua-of-australia-and-yaroslava-shvedova-of-kazakhstan-in-the-womans-double-final-match-at-arthur-ashe-stadium-during-the-us-open-tennis-championships-at-the-usta-billie-jean-king-national-tennis-center-in-new-york-city-on-september-13-2015-hingis-and-mirza-won-6-3-6-3-photo-by-monika-graffupi-TYR0XJ.jpg)
Martina Hingis (L) of Switzerland and Sania Mirza of India show off their trophy after defeating Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the woman's double final match at
![World No.1 Roger Federer of Switzerland competes against Rafael Nadal of Spain during a semi-final match of the Tennis Masters Cup Shanghai 2007 in Sh Stock Photo - Alamy World No.1 Roger Federer of Switzerland competes against Rafael Nadal of Spain during a semi-final match of the Tennis Masters Cup Shanghai 2007 in Sh Stock Photo - Alamy](https://c8.alamy.com/comp/W9HBXM/world-no1-roger-federer-of-switzerland-competes-against-rafael-nadal-of-spain-during-a-semi-final-match-of-the-tennis-masters-cup-shanghai-2007-in-sh-W9HBXM.jpg)
World No.1 Roger Federer of Switzerland competes against Rafael Nadal of Spain during a semi-final match of the Tennis Masters Cup Shanghai 2007 in Sh Stock Photo - Alamy
![Sania Mirza of India returns volley with playing partner Martina Hingis of Switzerland (not pictured) as they face Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the women's doubles final Sania Mirza of India returns volley with playing partner Martina Hingis of Switzerland (not pictured) as they face Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the women's doubles final](https://c8.alamy.com/comp/2CNJNWW/sania-mirza-of-india-returns-volley-with-playing-partner-martina-hingis-of-switzerland-not-pictured-as-they-face-casey-dellacqua-of-australia-and-yaroslava-shvedova-of-kazakhstan-in-the-womens-doubles-final-match-at-the-us-open-championships-tennis-tournament-in-new-york-september-13-2015-reuterscarlo-allegri-2CNJNWW.jpg)
Sania Mirza of India returns volley with playing partner Martina Hingis of Switzerland (not pictured) as they face Casey Dellacqua of Australia and Yaroslava Shvedova of Kazakhstan in the women's doubles final
![Timea Bacsinszky Switzerland returns against Sharon Fichman Editorial Stock Photo - Stock Image | Shutterstock Timea Bacsinszky Switzerland returns against Sharon Fichman Editorial Stock Photo - Stock Image | Shutterstock](https://editorial01.shutterstock.com/wm-preview-1500/6765032o/a2ff25d8/britain-wimbledon-tennis-london-united-kingdom-shutterstock-editorial-6765032o.jpg)
Timea Bacsinszky Switzerland returns against Sharon Fichman Editorial Stock Photo - Stock Image | Shutterstock
![Stan Wawrinka Switzerland hits return Jeremy Chardy Editorial Stock Photo - Stock Image | Shutterstock Stan Wawrinka Switzerland hits return Jeremy Chardy Editorial Stock Photo - Stock Image | Shutterstock](https://editorial01.shutterstock.com/wm-preview-1500/10374622cr/045f3977/usa-tennis-us-open-2019-new-york-shutterstock-editorial-10374622cr.jpg)
Stan Wawrinka Switzerland hits return Jeremy Chardy Editorial Stock Photo - Stock Image | Shutterstock
![Roger Federer of Switzerland celebrates after defeating Daniil Medvedev of Russia in their second round match of the men's singles during the Rolex Sh Stock Photo - Alamy Roger Federer of Switzerland celebrates after defeating Daniil Medvedev of Russia in their second round match of the men's singles during the Rolex Sh Stock Photo - Alamy](https://l450v.alamy.com/450v/w622ee/roger-federer-of-switzerland-celebrates-after-defeating-daniil-medvedev-of-russia-in-their-second-round-match-of-the-mens-singles-during-the-rolex-sh-w622ee.jpg)
Roger Federer of Switzerland celebrates after defeating Daniil Medvedev of Russia in their second round match of the men's singles during the Rolex Sh Stock Photo - Alamy
![Roger Federer Switzerland during practice session USTA Editorial Stock Photo - Stock Image | Shutterstock Roger Federer Switzerland during practice session USTA Editorial Stock Photo - Stock Image | Shutterstock](https://editorial01.shutterstock.com/wm-preview-1500/9807574j/1ebe58ae/2018-us-open-tennis-practice-sessions-new-york-usa-shutterstock-editorial-9807574j.jpg)