Novak Djokovic hoists his fifth ATP World Tour Finals trophy after defeating Roger Federer
Novak Djokovic celebrates with ballkids after his fourth straight Barclays ATP World Tour Finals title.
Novak Djokovic defeated Roger Federer for the 2015 Barclays ATP World Tour Finals title.
Roger Federer will finish at No. 3 in the Emirates ATP Rankings.
Horia Tecau and Jean-Julien Rojer celebrate capturing the Barclays ATP World Tour Finals title.
The year-end No. 1 team Jean-Julien Rojer and Horia Tecau in action during the title match at the Barclays ATP World Tour Finals.
Roger Federer serves against countryman Stan Wawrinka on Saturday at The O2.
Jean-Julien Rojer and Horia Tecau will seek their third title of the season after advancing at the Barclays ATP World Tour Finals.
Alexander Zverev is presented with the ATP Star of Tomorrow award by ATP World Tour Executive Chairman & President Chris Kermode
Novak Djokovic pulled level with Rafael Nadal at 23-23 in the 2015 Barclays ATP World Tour Finals semis.
Novak Djokovic reaches a fourth consecutive final at the Barclays ATP World Tour Finals.
Novak Djokovic battles Rafael Nadal in semi-finals at the Barclays ATP World Tour Finals.
Denis Kudla (centre) won the inaugural 'Young Guns Contest' based on on-court performances and social network performances.
Eighth seeds Rohan Bopanna and Florin Mergea advance to the final at The O2 in London.
Stan Wawrinka hustles his way to a third straight semi-final appearance at the Barclays ATP World Tour Finals.
Stan Wawrinka takes the court on Friday against Andy Murray at The O2.
Andy Murray gets loose before Friday's round-robin match-up with Stan Wawrinka.
Jean-Julien Rojer and Horia Tecau celebrate their Group Fleming/McEnroe victory on Friday.
Rafael Nadal battles David Ferrer on Friday at the Barclays ATP World Tour Finals.
Roger Federer fights to a win against Kei Nishikori despite having already clinched a semi-final berth.
Roger Federer defeats Kei Nishikori in three sets.
Novak Djokovic moves into the semi-finals after defeating Tomas Berdych to improve to 2-1.
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