Novak Djokovic of Serbia walks out prior to his singles match against Andrey Rublev of Russia on Day Four of the Nitto ATP World Tour Finals at Pala...
Cameron Norrie of Great Britain celebrates during his mens singles Round Robin match against Casper Ruud of Norway during Day Four of the Nitto ATP...
Chairman Andrea Gaudenzi presents Carlos Alcaraz of Spain with the ATP Year End Number One Trophy during day four of the Nitto ATP Finals at Pala...
Rafael Nadal of Spain serves during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World Tour Finals...
Rafael Nadal of Spain reacts during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World Tour Finals...
Nikolay Davydenko of Russia celebrates winning the men's singles first round match against Rafael Nadal of Spain during the Barclays ATP World Tour...
Rafael Nadal of Spain reacts during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World Tour Finals...
Rafael Nadal of Spain reacts during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World Tour Finals...
Rafael Nadal of Spain serves the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain returns the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain serves the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain serves the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain serves the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain returns the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Rafael Nadal of Spain returns the ball during the men's singles first round match against Nikolay Davydenko of Russia during the Barclays ATP World...
Robin Soderling of Sweden celebrates winning the match during the men's singles first round match against Novak Djokovic of Serbia during the...
Robin Soderling of Sweden celebrates winning the match during the men's singles first round match against Novak Djokovic of Serbia during the...
Robin Soderling of Sweden celebrates a point during the men's singles first round match against Novak Djokovic of Serbia during the Barclays ATP...
Novak Djokovic of Serbia returns the ball during the men's singles first round match against Robin Soderling of Sweden during the Barclays ATP World...
Robin Soderling of Sweden returns the ball during the men's singles first round match against Novak Djokovic of Serbia during the Barclays ATP World...
Robin Soderling of Sweden returns the ball during the men's singles first round match against Novak Djokovic of Serbia during the Barclays ATP World...
Novak Djokovic of Serbia returns the ball during the men's singles first round match against Robin Soderling of Sweden during the Barclays ATP World...
Roger Federer of Switzerland poses with the ATP World Tour Champion Trophy during the Barclays ATP World Tour Finals at the O2 Arena on November 25,...
Dominic Thiem of Austria celebrates during the singles match against Pablo Carreno Busta of Spain on day four of the 2017 Nitto ATP World Tour Finals...
Dominic Thiem of Austria celebrates victory during the singles match against Pablo Carreno Busta of Spain on day four of the 2017 Nitto ATP World...
Dominic Thiem of Austria celebrates victory during the singles match against Pablo Carreno Busta of Spain on day four of the 2017 Nitto ATP World...
Pablo Carreno Busta of Spain celebrates during the singles match against Dominic Thiem of Austria on day four of the 2017 Nitto ATP World Tour Finals...
Pablo Carreno Busta of Spain celebrates during the singles match against Dominic Thiem of Austria on day four of the 2017 Nitto ATP World Tour Finals...
Grigor Dimitrov of Bulgaria returns the ball during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World Tour...
Grigor Dimitrov of Bulgaria stretches for a forehand during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World...
Grigor Dimitrov of Bulgaria celebrates during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World Tour Finals...
Grigor Dimitrov of Bulgaria celebrates during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World Tour Finals...
Grigor Dimitrov of Bulgaria celebrates victory during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World Tour...
Grigor Dimitrov of Bulgaria celebrates victory during the singles match against David Goffin of Belgium on day four of the 2017 Nitto ATP World Tour...
Marcelo Melo of Brazil partner of Lukasz Kubot of Poland celebrates a point during the doubles match against Bob Bryan of The United States and Mike...
Marcelo Melo of Brazil partner of Lukasz Kubot of Poland celebrates a point during the doubles match against Bob Bryan of The United States and Mike...
Lukasz Kubot of Poland partner of Marcelo Melo of Brazil celebrates victory during the doubles match against Mike Bryan of The United States and Bob...
Lukasz Kubot of Poland partner of Marcelo Melo of Brazil celebrates victory during the doubles match against Mike Bryan of The United States and Bob...
Stan Wawrinka of Switzerland celebrates a point during his men's singles match against Marin Cilic of Croatia on day four of the ATP World Tour...
Marin Cilic of Croatia hits a backhand during his men's singles match against Stan Wawrinka of Switzerland on day four of the ATP World Tour Finals...
Stan Wawrinka of Switzerland celebrates match point during his men's singles match against Marin Cilic of Croatia on day four of the ATP World Tour...
Marin Cilic of Croatia hits a backhand during his men's singles match against Stan Wawrinka of Switzerland on day four of the ATP World Tour Finals...
Stan Wawrinka of Switzerland celebrates match point during his men's singles match against Marin Cilic of Croatia on day four of the ATP World Tour...
Stan Wawrinka of Switzerland celebrates match point during his men's singles match against Marin Cilic of Croatia on day four of the ATP World Tour...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Andy Murray of Great Britain reacts during his mens singles match against Kei Nishikori of Japan on day four of the ATP World Tour Finals at O2 Arena...
Stan Wawrinka of Switzerland shakes hands with David Ferrer of Spain after his victory in their men's singles match during day four of the Barclays...
Stan Wawrinka of Switzerland celebrates victory in his men's singles match against David Ferrer of Spain during day four of the Barclays ATP World...
Stan Wawrinka of Switzerland celebrates victory in his men's singles match against David Ferrer of Spain during day four of the Barclays ATP World...
Stan Wawrinka of Switzerland plays a backhand in his men's singles match against David Ferrer of Spain during day four of the Barclays ATP World Tour...
Stan Wawrinka of Switzerland reaches for a forehand in his men's singles match against David Ferrer of Spain during day four of the Barclays ATP...
Rafael Nadal of Spain celebrates victory in his men's singles match against Andy Murray of Great Britain during day four of the Barclays ATP World...
Rafael Nadal of Spain celebrates victory in his men's singles match against Andy Murray of Great Britain during day four of the Barclays ATP World...
Rafael Nadal of Spain shakes hands with Andy Murray of Great Britain after his victory in their men's singles match during day four of the Barclays...
Rafael Nadal of Spain celebrates victory in his men's singles match against Andy Murray of Great Britain during day four of the Barclays ATP World...
