Four Serbs play in French Open today

Serbia's Novak Djokovic, Janko Tipsarevic, Jelena Jankovic and Nenad Zimonjic, will meet their opponents on Friday, the sixth day of the French Open tournament. World's second-ranked Djokovic will play Argentina's Juan Martin Del Potro, currently 26th-ranked, in the match which will begin after 05:00 CET. Four Serbs play in French Open today This will be Djokovic and Del Potro's fourth duel. Djokovic won the previous three without losing a single set, and the last time he beat Del Potro was at the Rome tournament in 2009 (2-0). Tipsarevic will clash with Switzerland's Roger Federer in their third duel so far. Fereder won the previous two at the Australian Open in 2008 and in Basel in 2010. Jelena Jankovic will play American Bethanie Lynn Mattek-Sands, against whom she has a tie score of 1-1 in the previous two matches. Jankovic won the second match in Rome in 2010. Nenad Zimonjic and Slovenia's Katarina Srebotnik will kick-start at the mixed doubles competition, where they are defending the Roland Garros title. They will play the Swedish-Estonian team of Robert Lindstedt/Kaia Kanepi in the first round. Novak Djokovic (Beta/AP, file)

Four Serbs play in French Open today

This will be Đoković and Del Potro's fourth duel. Đoković won the previous three without losing a single set, and the last time he beat Del Potro was at the Rome tournament in 2009 (2-0).

Tipsarević will clash with Switzerland's Roger Federer in their third duel so far. Fereder won the previous two at the Australian Open in 2008 and in Basel in 2010.

Jelena Janković will play American Bethanie Lynn Mattek-Sands, against whom she has a tie score of 1-1 in the previous two matches. Janković won the second match in Rome in 2010.

Nenad Zimonjić and Slovenia's Katarina Srebotnik will kick-start at the mixed doubles competition, where they are defending the Roland Garros title.

They will play the Swedish-Estonian team of Robert Lindstedt/Kaia Kanepi in the first round.