The 2011 edition of the Chennai Open tennis tournament, the only ATP Tour leg in South East Asia begins in Chennai on Monday. In the event to be held at the Nungabakkam Stadium, Somdev Devvraman will look to carry forward his good form and repeat his 2009 performance. That year, he became the first Indian to make it to the singles final. Somdev has been given a direct entry into the main draw for the first time. Rohan Bopanna and Yuki Bhambri have got wild card entries in the singles. The tournament will also see the former world number one doubles duo of Leander Paes and Mahesh Bhupathi. The pair will re-unite on the ATP tour for the first time since their 2002 separation. After winning the singles gold medals at the Commonwealth and the Asian Games, Somdev has raised expectations. A singles ATP Tour title has eluded him ever since he turned pro in 2008. The event has tough field with four top-30 players in fray. Top seed and world number six Thomas Berdych of Czech Republic, who derailed Roger Federer and Rafael Nadal at Wimbledon, stars as favourite. World number 14 Marin Cilic of Croatia will open his campaign against Japan's Kei Nishikori. Bopanna's forte is doubles and he has got a tough singles draw as he finds himself against third seed and world number 21 Stanislas Wawrinka of Switzerland. If he crosses the first hurdle, his second round rival could be Somdev, who will open his campaign against a qualifier at the 450,000 US dollar tournament.