File:2014-11-12 2014 ATP World Tour Finals Stanislas Wawrinka forehand by Michael Frey.jpg - Wikimedia Commons
Barcelona, Spain. 25th Apr, 2014. Rafael Nadal repetitive manias before every play, during Barcelona Open 2014 ATP tennis 500 quarter finals at the Real Club de Tenis Barcelona Credit: fototext/Alamy Live News
ATP World Tour Finals 2014: Andy Murray on Roger Federer challenge
Novak Djokovic vs Kei Nishikori: Extended Highlights | Nitto ATP Finals 2014 - YouTube
Roger Federer vs. Stan Wawrinka: Score and Recap from 2014 ATP World Tour Finals | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
Roger Federer nears the top, erases doubts of 2013
Roger Federer breezes past Kei Nishikori at ATP World Tour Finals | ATP World Tour Finals | The Guardian
2014 Dubai Tennis Championships - Wikipedia
ATP Tour on Twitter: "Young guns @keinishikori & @milosraonic complete #FinalShowdown field. Tickets: http://t.co/3lafb4iVhJ #ATP #tennis http://t.co/xQ2HlhRCNU" / Twitter
Cilic qualifies for ATP World Tour Finals - Eurosport
2014 Preview: ATP Buy/Sell/Hold - Sports Illustrated