Novak Djokovic extended his winning streak to 42 this morning with a 4 set victory over Juan Martin Del Potro. Djokovic's 2011 record is 40-0 as he advanced into the next round of the French Open. His 42 match streak is the third best of the Open Era. The best winning streak to begin a season is 42-0, set by John McEnroe in 1984. Here is more from the AP and

As it happens, the 24-year-old Serb ran into McEnroe at Roland Garros on Saturday, and they chatted. Asked whether McEnroe was one of his favorite players, Djokovic replied with a smile: "Nothing against his age, but it's just that I was still quite young when he stopped playing."

McEnroe said recently he finds Djokovic's streak more impressive than his own, because of the current depth in men's tennis, and because it includes a Grand Slam title -- at January's Australian Open, which was played at season's end in 1984.

Djokovic continues to roll

If you haven't had a chance to see Djokovic play on clay this year, you're missing out. He'll be in action again tomorrow, battling No. 13 Richard Gasquet of France.

If Novak reaches the final of the French Open, he'll take over the world's No. 1 ranking from Rafael Nadal, regardless of what happens in the final, even if he's facing Nadal in it. Djokovic is 4-0 this season against Rafa, with 2 of those victories coming on clay.