PARIS (AFP) - World number one Rafael Nadal has a record-equalling sixth French Open in his sights, but the Spaniard believes undefeated Novak Djokovic will start Roland Garros as title favourite. Something has got to give over the next two weeks. Nadal, one triumph away from matching Bjorn Borgs six trophies in Paris has a French Open record of 38 wins and just one loss his sensational early 2009 exit to Robin Soderling. Djokovic, the world number two, has won all 37 matches he has played this year and is just five away from matching John McEnroes 1984 record for successive wins at the start of a year. Its a streak which has garnered seven titles, including the Australian Open and all four Masters. I think Djokovic is the great favourite. He hasnt lost a match since the start of the year and hes playing in an incredible way, said Nadal, who has lost to the Serb in all the four Masters finals. Crucially, the last two were on the clay of Madrid and Rome where Nadal was defending champion. But the Spaniard is wary of over-confidence, either by him or his main rival. Djokovic can also snatch Nadals world number one spot if he reaches the final in two weeks time. The Serb is a two-time semi-finalist in Paris, but he is desperate to play down the hype of an event which could see a shift in the sports balance of power. But Nadal has history on his side having defeated Djokovic three times in Paris, all in straight sets. His 2008 and 2010 surges to the title were achieved without dropping a set and Nadal believes all the pressure will be on Djokovic. He beat me in the last four Masters but I beat him in lots of important things in the past the semi-finals of the Olympics, the final of the US Open, two semi-finals at Roland Garros, said Nadal. Federer, the 2009 champion, will be 30 in August and is desperate to prove that he is still a threat at the majors. He is also driven by a desire to recapture the number one spot, where his 285 weeks on top of the rankings is just one week short of Pete Samprass record. Federers three clay court outings this year have ended prematurely, with a quarter-final loss to Juergen Melzer in Monte-Carlo, a semi-final exit against Nadal in Madrid followed by a third-round defeat to Richard Gasquet in Rome.