![ATP World Tour Finals 2015: Roger Federer calls for stricter tennis drugs testing to preserve sport's image | The Independent | The Independent ATP World Tour Finals 2015: Roger Federer calls for stricter tennis drugs testing to preserve sport's image | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2015/11/13/19/atp-world-tour.jpg?width=1200)
ATP World Tour Finals 2015: Roger Federer calls for stricter tennis drugs testing to preserve sport's image | The Independent | The Independent
![ATP World Tour Finals 2015 Results: Tuesday Tennis Scores and Updated Schedule | News, Scores, Highlights, Stats, and Rumors | Bleacher Report ATP World Tour Finals 2015 Results: Tuesday Tennis Scores and Updated Schedule | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://media.bleacherreport.com/w_800,h_533,c_fill/br-img-article/002/277/773/8a44c81f5b95156a95409a6b7ead8e87_crop_exact.jpg)
ATP World Tour Finals 2015 Results: Tuesday Tennis Scores and Updated Schedule | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![London, UK. 21st Nov, 2015. Barclays ATP World Tour Finals, Novak Djokovic (SRB) on his way to win against Rafael Nadal (ESP) in Day 7 Semi-finals match. O2 Arena, London, UK. 21 London, UK. 21st Nov, 2015. Barclays ATP World Tour Finals, Novak Djokovic (SRB) on his way to win against Rafael Nadal (ESP) in Day 7 Semi-finals match. O2 Arena, London, UK. 21](https://c8.alamy.com/comp/F6Y10K/london-uk-21st-nov-2015-barclays-atp-world-tour-finals-novak-djokovic-F6Y10K.jpg)
London, UK. 21st Nov, 2015. Barclays ATP World Tour Finals, Novak Djokovic (SRB) on his way to win against Rafael Nadal (ESP) in Day 7 Semi-finals match. O2 Arena, London, UK. 21
![London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals](https://c8.alamy.com/comp/F6TE00/london-uk-19th-november-2015-atp-tour-tennis-finals-day-5-novak-djokovic-F6TE00.jpg)
London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals
![ATP World Tour Finals 2015 - resurgent Nadal crushes Murray - The Championships, Wimbledon - Official Site by IBM ATP World Tour Finals 2015 - resurgent Nadal crushes Murray - The Championships, Wimbledon - Official Site by IBM](https://photo-assets.wimbledon.com/images/pics/large/s_nadsd4.png)
ATP World Tour Finals 2015 - resurgent Nadal crushes Murray - The Championships, Wimbledon - Official Site by IBM
![Cometh the final, cometh the beast: What we learnt from Federer vs Djokovic at ATP World Tour finals-Sports News , Firstpost Cometh the final, cometh the beast: What we learnt from Federer vs Djokovic at ATP World Tour finals-Sports News , Firstpost](http://www.firstpost.com/wp-content/uploads/2015/11/federer-djokovic-reuters-3801.jpg)
Cometh the final, cometh the beast: What we learnt from Federer vs Djokovic at ATP World Tour finals-Sports News , Firstpost
![London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals](https://c8.alamy.com/comp/F6TE05/london-uk-19th-november-2015-atp-tour-tennis-finals-day-5-novak-djokovic-F6TE05.jpg)
London, UK. 19th November, 2015. ATP Tour Tennis Finals Day 5. Novak Djokovic (SRB) defeats Tomas Berdych (CZE) by a score of 6-3, 7-5 during Day Five Barclays ATP World Tour Finals
![Breaking Down the Late Stages of the 2015 ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report Breaking Down the Late Stages of the 2015 ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://img.bleacherreport.net/img/images/photos/003/547/266/hi-res-9f663fc7224441040838264f58cb315b_crop_north.jpg?1448001751&w=3072&h=2048)
Breaking Down the Late Stages of the 2015 ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![ATP Confirms London As Host City Through 2018 As 2015 Season Finale Is Officialy Launched | ATP Tour | Tennis ATP Confirms London As Host City Through 2018 As 2015 Season Finale Is Officialy Launched | ATP Tour | Tennis](https://www.atptour.com/en/news/www.atptour.com/-/media/images/news/2015/11/12/23/09/bawtf-2015-london-extension.jpg)