![Tennis - Barclays ATP World Tour Finals - 02 Arena, London - 6/11/12 Men's Singles - General view of Serbia's Janko Tipsarevic and Switzerland's Roger Federer (L) during their Group B round Tennis - Barclays ATP World Tour Finals - 02 Arena, London - 6/11/12 Men's Singles - General view of Serbia's Janko Tipsarevic and Switzerland's Roger Federer (L) during their Group B round](https://c8.alamy.com/comp/2EFK1NH/tennis-barclays-atp-world-tour-finals-02-arena-london-61112-mens-singles-general-view-of-serbias-janko-tipsarevic-and-switzerlands-roger-federer-l-during-their-group-b-round-robin-match-mandatory-credit-action-images-andrew-couldridge-livepic-2EFK1NH.jpg)
Tennis - Barclays ATP World Tour Finals - 02 Arena, London - 6/11/12 Men's Singles - General view of Serbia's Janko Tipsarevic and Switzerland's Roger Federer (L) during their Group B round
![How Roger Federer's Success Built the ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report How Roger Federer's Success Built the ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://media.bleacherreport.com/w_800,h_533,c_fill/br-img-article/002/576/252/b28a2fc422002ab95ec9b2969f837d32_crop_exact.jpg)
How Roger Federer's Success Built the ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![ATP World Tour Finals: Jack Sock Downs Alexander Zverev To Make Semis, Roger Federer Haunts Marin Cilic | Tennis News ATP World Tour Finals: Jack Sock Downs Alexander Zverev To Make Semis, Roger Federer Haunts Marin Cilic | Tennis News](https://i.ndtvimg.com/i/2017-11/jack-sock-world-tour-semis-afp_806x605_71510894098.jpg)
ATP World Tour Finals: Jack Sock Downs Alexander Zverev To Make Semis, Roger Federer Haunts Marin Cilic | Tennis News
![Tennis | ATP World Tour Finals 2018 | Djokovic cruises past Zverev, urges patience in expectations of chasing pack | Britwatch Sports Tennis | ATP World Tour Finals 2018 | Djokovic cruises past Zverev, urges patience in expectations of chasing pack | Britwatch Sports](https://britwatchsports.com/wp-content/uploads/2018/11/Djokovic-ATP-WTF-18-RR2a-Getty.jpg)
Tennis | ATP World Tour Finals 2018 | Djokovic cruises past Zverev, urges patience in expectations of chasing pack | Britwatch Sports
![ATP World Tour Finals: Stanislas Wawrinka to face Roger Federer in semi- finals | Tennis News | Sky Sports ATP World Tour Finals: Stanislas Wawrinka to face Roger Federer in semi- finals | Tennis News | Sky Sports](https://e0.365dm.com/14/11/2048x1152/tennis-stan-wawrinka-atp-world-tour-finals_3229214.jpg)