![Djokovic, Nadal, Federer headline 2019 US Open men's singles field - Official Site of the 2022 US Open Tennis Championships - A USTA Event Djokovic, Nadal, Federer headline 2019 US Open men's singles field - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_novak_rafa_roger.jpg)
Djokovic, Nadal, Federer headline 2019 US Open men's singles field - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Juan Martin del Potro of Argentina holds his head during the men's singles finals match against Roger Federer of Switzerland at the U.S. Open tennis championship in New York September 14, 2009. Juan Martin del Potro of Argentina holds his head during the men's singles finals match against Roger Federer of Switzerland at the U.S. Open tennis championship in New York September 14, 2009.](https://c8.alamy.com/comp/2E8GW5G/juan-martin-del-potro-of-argentina-holds-his-head-during-the-mens-singles-finals-match-against-roger-federer-of-switzerland-at-the-us-open-tennis-championship-in-new-york-september-14-2009-reuterseduardo-munoz-united-states-sport-tennis-2E8GW5G.jpg)
Juan Martin del Potro of Argentina holds his head during the men's singles finals match against Roger Federer of Switzerland at the U.S. Open tennis championship in New York September 14, 2009.
![Photo: Roger Federer and Juan Martin Del Potro meet in the Men's Singles Final at the US Open Tennis Championships in New York - NYP20090914115 - UPI.com Photo: Roger Federer and Juan Martin Del Potro meet in the Men's Singles Final at the US Open Tennis Championships in New York - NYP20090914115 - UPI.com](https://cdnph.upi.com/pv/upi/bb2a2b69d5cbe50555772215aad0ce72/2009-US-OPEN.jpg)
Photo: Roger Federer and Juan Martin Del Potro meet in the Men's Singles Final at the US Open Tennis Championships in New York - NYP20090914115 - UPI.com
![Juan Martin del Potro (R) of Argentina holds the champions trophy after defeating Roger Federer of Switzerland in the men's singles final match at the U.S. Open tennis championship in New York, Juan Martin del Potro (R) of Argentina holds the champions trophy after defeating Roger Federer of Switzerland in the men's singles final match at the U.S. Open tennis championship in New York,](https://c8.alamy.com/comp/2E8D6GY/juan-martin-del-potro-r-of-argentina-holds-the-champions-trophy-after-defeating-roger-federer-of-switzerland-in-the-mens-singles-final-match-at-the-us-open-tennis-championship-in-new-york-september-14-2009-reutersdavid-gray-united-states-sport-tennis-2E8D6GY.jpg)