Image:The Serb started his groundbreaking year with victory over Andy Murray in the final of the Australian Open.
Image:In the women's draw, Li Na became the first Asian player to reach the final of a Grand Slam, but Kim Clijsters proved too strong in the final.
Image:Djokovic maintained his unbeaten start to the season with Masters titles at Indian Wells...
Image:Miami...
Image:Madrid...
Image:And Rome.
Image:Djokovic also triumphed in Dubai, the scene of Caroline Wozniacki's first of six WTA titles in 2011.
Image:Roland Garros played host to its 110th French Open Championships.
Image:And it was also the setting of Djokovic's first defeat of the season as Roger Federer prevailed in their semi-final showdown.
Image:Federer met old adversary Rafael Nadal in the final.
Image:But the King of Clay proved too strong, winning 7-5 7-6 (7-3) 5-7 6-1 to clinch his sixth French Open title.
Image:On the women's side, Li Na avenged her Australian Open disappointment with victory over former champion Francesca Schiavone in the final.
Image:The world's elite then descended on Wimbledon for the 125th All England Club Championships.
Image:British hopes once again rested on the shoulders of Andy Murray.
Image:And the Scot powered into his third successive Wimbledon semi-final.
Image:But once again Nadal got the better of him in the semis, coming through in four sets to the disappointment of the home crowd.
Image:Nadal and Djokovic met in the final - grasscourt king Federer a quarter-final casualty at his adopted home for a second year running.
Image:And it was the resurgent Serb who lifted his maiden Wimbledon title courtesy of a stunning 6-4 6-1 1-6 6-3 victory on Centre Court.
Image:There was a first-time winner on the women's side, too, as Czech left-hander Petra Kvitova stunned Maria Sharapova in the final.
Image:In what was an injury-plagued season, Serena Williams claimed her only two WTA titles at Stanford and at the Rogers Cup, Toronto (pictured).
Image:Murray also warmed up for the US Open in style by claiming his second Cincinnati Masters title.
Image:The final major of the year looked wide open on both the men's and women's draw.
Image:But rain wreaked havoc with the schedule.
Image:The talking point of the tournament came in the women's final where Serena unleashed another verbal assault on an official.
Image:But Australian opponent Sam Stosur put the distractions to one side to claim her maiden Grand Slam title in straight sets.
Image:The men's final once again took place on a Monday, where Nadal and Djokovic contested a sixth final of the year.
Image:And it was the Serb who continued his dominance over the Spaniard, lifting his maiden US Open title courtesy of a stunning 6-2 6-4 6-7(3-7) 6-1 success.
Image:After reaching at least the semi-finals of all four majors, Murray then enjoyed a fruitful Asian swing with titles in Bangkok, Tokyo (pictured) & Shanghai.
Image:Czech star Kvitova capped a breakthrough year with victory at the WTA Championships at Istanbul, as well as a cheque for $1.75 million.
Image:A gruelling year was taking it's toll on a number of the ATP stars as they arrived in London for the World Tour Finals.
Image:Federer capitalised on injuries to Djokovic, Nadal and Murray to clinch a record-breaking sixth season-ending crown at the O2 Arena.
