The O2, London, UK. 11 Nov, 2013. Rafael Nadal in action at the ATP World Tour Finals. Nadal lost the match 6-3 6-4 to Novak Djokovic © Malcolm Park editorial/Alamy Live News Stock Photo - Alamy
Metz, France. 21st Sep, 2013. The Moselle Open ATP tennis tournament semi-finals. Gilles Simon (Fra) Credit: Action Plus Sports/Alamy Live News Stock Photo - Alamy
Exhausted' Novak Djokovic battles on to Davis Cup final following victory over Rafael Nadal in ATP World Tour Final 2013 | The Independent | The Independent
2013 ATP World Tour - Wikipedia
Federer Walks Off a Loser but Is Not Walking Away - The New York Times
![London, UK. 11th Nov, 2013. Novak Djokovic [SRB] celebrates a point during his match against Rafael Nadal [ESP] in the final of The ATP World Tour Finals 2013 at the O2 Arena](https://c8.alamy.com/comp/DHJCFF/london-uk-11th-nov-2013-novak-djokovic-srb-celebrates-a-point-during-DHJCFF.jpg "London, UK. 11th Nov, 2013. Novak Djokovic [SRB] celebrates a point during his match against Rafael Nadal [ESP] in the final of The ATP World Tour Finals 2013 at the O2 Arena")
London, UK. 11th Nov, 2013. Novak Djokovic [SRB] celebrates a point during his match against Rafael Nadal [ESP] in the final of The ATP World Tour Finals 2013 at the O2 Arena
Barclays ATP World Tour Finals 2013 Tournament Review - YouTube
Rafael Nadal v Novak Djokovic, ATP World Tour Finals 2013 final at O2 arena: live
TENNIS: ATP World Tour Finals 2013 (2) infographic
Fitting end to 2013 ATP World Tour Finals - Global Times
Roger Federer Switzerland Front Rafael Nadal Spain Pictured Mens Singles – Stock Editorial Photo © ChinaImages #242143578
Rafael Nadal vs. Novak Djokovic: Score and Recap from 2013 ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
New ATP Rules on Time, Logos for 2013 - Tennis Now
ATP World Tour Finals 2013 Results: Day 6 Scores, Highlights and Recap | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
ATP World Tour Finals 2013: Breaking Down Top Dark-Horse Contenders | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
ATP World Tour Uncovered 2013 Season Review Part 1 - YouTube
Hot Shot Countdown: See The Best Points From The 2013 Season Finale - YouTube
For Rafael Nadal, self-doubt can be good for his game
Nadal vs Djokovic: ATP Finals 2013 Final Highlights - YouTube
ATP World Tour Finals 2013: Roger Federer sets up semi-final with Rafael Nadal after coming from behind to beat Juan Martin del Potro | The Independent | The Independent
ATP World Tour Finals 2013: Rafael Nadal secures end of year world No 1 ranking with victory over Stanislas Wawrinka | The Independent | The Independent
Roger Federer - ATP Finals London 2013 | Roger Federer 2013 … | Flickr
Rafael Nadal defeats Roger Federer to reach the Final at the ATP World Tour Final! – Rafael Nadal Fans
Switzerland's Roger Federer returns the ball during his match against Adrian Mannarino of France at the
