Somdev Devvarman begins his bid for a top-100 return while Leander Paes could again run into his estranged doubles partner Mahesh Bhupathi, who returns to the court after a nine-month gap with the ATP Chennai Open Tennis tournament beginning from today. Other than Indian troika of Devvarman, Paes and Bhupathi, the Chennai crowd will turn up at the SDAT Tennis Stadium to see world number four and reigning Australian Open champion Stanislas Wawrinka.The Swiss player is the favourite to defend his title in Chennai in what will be his seventh appearance.While Wawrinka has been given a first-round bye in the men's singles first round beginning today, India's best bet and 138th-ranked Devvarman has a tough opener against World No. 38 Yen-Hsun Lu of Chinese Taipei.Another Indian wild card in the main draw is 241st-ranked Ramkumar Ramanathan, who takes on 93rd-ranked Tatsuma Ito of Japan in the first round.The other singles players to lookout for include Spain's second seed Feliciano Lopez, his countryman and third seed Roberto Bautista Agut and fourth seed David Goffin of Belgium.