Amazing Opening Ceremony - O2 Arena - ATP World Tour Finals London 2012 - YouTube
2016 ATP World Tour Finals - Wikipedia
ATP World Tour Finals odds and free bet: Djokovic the man to beat in London
Tennis: 'Super sad' Nadal out of Paris Masters, doubt for ATP Finals | The Straits Times
Sunday Oliseh on Twitter: "Watching the london Tennis masters. Wish Roger Federer was on .Andy murray Could get into the record books today. World Nr 1 is at stake. https://t.co/spg3h1h1FD" / Twitter
The ATP Finals Say Goodbye to London - The New York Times
History | Nitto ATP Finals | Tennis
Champion Federer floors Ferrer to reach semis at ATP finals | CNN
ATP World Tour Finals will be staying in London after contract is extended | ATP World Tour Finals | The Guardian
Pacing his season helps Roger Federer believe he can progress in ATP Finals | ATP World Tour Finals | The Guardian