( CNN ) -- Novak Djokovic 's blistering start to the year has secured him a place at the season-ending ATP World Tour Finals even before the second Grand Slam event of the year . The Serbian has won 37 straight matches in 2011 , claiming the Australia Open and six other tournament titles . His most recent came at the Rome Masters on Sunday when he defeated world number one Rafael Nadal . He has now beaten Nadal in four finals this year , and was the man to end the Spaniard 's two-year winning run on clay in Madrid just over a week ago . And it was his victory in the final at Rome that handed the 23-year-old the 1,000 ranking points he required to ensure he will be at the finale of the season in London in November between the best eight players in the world . Djokovic 's last defeat came at the 2010 event at The O2 in the English capital when he lost to Roger Federer in the semifinals . CNN Blog : Djokovic 's dream year show no sign of slowing . Since then he has raised his game to such an extent that he could claim the number one ranking from Nadal if he reaches the final of the French Open , that starts Sunday , even if the Spaniard retains his title . But Djokovic told the ATP 's official web site Nadal is still favorite in Paris : `` Let us be clear -- he is the king of clay and he is the best player ever to play on this surface . `` I have won against him twice in the last [ nine ] days which I think is an incredible achievement for me and it has given me a lot of confidence for the French Open . `` But this is only a couple of tournaments this year and he has been dominant on this surface for so many years . '' Nadal is the only other player to secure a place at the ATP Tour Finals before the French Open when he achieved the feat in 2009 . After a hectic few weeks , Djokovic says he intends to put his feet up for a few days before focusing on the second Grand Slam tournament of the year . `` I am not going to touch the racket for the next four days , '' Djokovic said . `` I have had enough for now and rest is very important right now to recover , and then I 'll get ready for Roland Garros , the most important tournament on this surface . ''
Rafael Nadal qualifies for 2011 ATP World Tour Finals event in London . World number two has won 37 straight matches and two titles in 2011 . Despite his imperious form the French still claims Rafael Nadal is favorite for French Open . Novak Djokovic can be crowned world number one if he reaches the final at Roland Garros .