![Tennis - ATP Finals - The O2, London, Britain - November 14, 2019 Switzerland's Roger Federer in action during his group stage match against Serbia's Novak Djokovic REUTERS/Toby Melville Stock Photo - Alamy Tennis - ATP Finals - The O2, London, Britain - November 14, 2019 Switzerland's Roger Federer in action during his group stage match against Serbia's Novak Djokovic REUTERS/Toby Melville Stock Photo - Alamy](https://c8.alamy.com/comp/2ED6YPC/tennis-atp-finals-the-o2-london-britain-november-14-2019-switzerlands-roger-federer-in-action-during-his-group-stage-match-against-serbias-novak-djokovic-reuterstoby-melville-2ED6YPC.jpg)
Tennis - ATP Finals - The O2, London, Britain - November 14, 2019 Switzerland's Roger Federer in action during his group stage match against Serbia's Novak Djokovic REUTERS/Toby Melville Stock Photo - Alamy
![Tennis - ATP 500 - Fever-Tree Championships - The Queen's Club, London, Britain - June 21, 2019 General view during play Action Images via Reuters/Tony O'Brien Stock Photo - Alamy Tennis - ATP 500 - Fever-Tree Championships - The Queen's Club, London, Britain - June 21, 2019 General view during play Action Images via Reuters/Tony O'Brien Stock Photo - Alamy](https://c8.alamy.com/comp/2CME3TK/tennis-atp-500-fever-tree-championships-the-queens-club-london-britain-june-21-2019-general-view-during-play-action-images-via-reuterstony-obrien-2CME3TK.jpg)
Tennis - ATP 500 - Fever-Tree Championships - The Queen's Club, London, Britain - June 21, 2019 General view during play Action Images via Reuters/Tony O'Brien Stock Photo - Alamy
![Tennis | Nitto ATP Finals 2019 | Tsitsipas stuns Federer in straight sets to book final berth on London | Britwatch Sports Tennis | Nitto ATP Finals 2019 | Tsitsipas stuns Federer in straight sets to book final berth on London | Britwatch Sports](https://britwatchsports.com/wp-content/uploads/2019/11/Tsitsipas-ATPF19-RR1a-Getty.jpg)
Tennis | Nitto ATP Finals 2019 | Tsitsipas stuns Federer in straight sets to book final berth on London | Britwatch Sports
![ATP World Tour Finals 2019 Results: Rafael Nadal Eliminated, Zverev Advances | Bleacher Report | Latest News, Videos and Highlights ATP World Tour Finals 2019 Results: Rafael Nadal Eliminated, Zverev Advances | Bleacher Report | Latest News, Videos and Highlights](https://img.bleacherreport.net/img/images/photos/003/838/362/hi-res-25de0bddb53c4360539a7a2ed9f64cad_crop_north.jpg?1573847954&w=3072&h=2048)
ATP World Tour Finals 2019 Results: Rafael Nadal Eliminated, Zverev Advances | Bleacher Report | Latest News, Videos and Highlights
![Roger Federer, John McEnroe Top Honour Roll At ATP Season Finale | Nitto ATP Finals 2019 Facts & Figures | ATP Tour | Tennis Roger Federer, John McEnroe Top Honour Roll At ATP Season Finale | Nitto ATP Finals 2019 Facts & Figures | ATP Tour | Tennis](https://www.atptour.com/en/news/www.atptour.com/-/media/images/news/2019/11/10/18/36/nitto-atp-finals-2019-preview-graphic-1920x1080.jpg)
Roger Federer, John McEnroe Top Honour Roll At ATP Season Finale | Nitto ATP Finals 2019 Facts & Figures | ATP Tour | Tennis
![15th November 2019 02 Arena London, England; Nitto ATP, Tennis Herren Tennis Finals; A dejected Rafael 15th November 2019 02 Arena London, England; Nitto ATP, Tennis Herren Tennis Finals; A dejected Rafael](https://www.imago-images.com/bild/sp/0044712855/w.jpg)
15th November 2019 02 Arena London, England; Nitto ATP, Tennis Herren Tennis Finals; A dejected Rafael
![Photos: 2019 Nitto ATP Finals - Official Site of the 2022 US Open Tennis Championships - A USTA Event Photos: 2019 Nitto ATP Finals - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_2019_ATP_Finals_1.jpg)