Top seeds Leander Paes and South African Raven Klaasen fought off a spirited challenge from the Indian duo of Mahesh Bhupathi and Saketh Myneni 1-6, 6-1, 10-7, and qualified for the doubles semi-finals in the ATP Aircel Chennai Open here Thursday.
Paes, in his 25th ATP season, and Klaasen will take on Spaniards Pablo Carreno Busta and Guillermo Garcia-Lopez, who overcame Ricardas Berankis (Lithuania) and Mate Pavic (Croatia) 6-4, 0-6, 10-4.
Also reaching the semi-finals were the Indian-Canadian combination of Purav Raja and Adil Shamsdin who overcame Roberto Bautista Agut (France) and Stan Wawrinka (Switzerland) 7-6 (5), 4-6, 10-4.
The results (quarter-finals):
Doubles: 1-Leander Paes (IND)/Raven Klaasen (RSA) bt Mahesh Bhupathi/Saketh Myneni (IND) 1-6, 6-1, 10-7; Purav Raja (IND)/Adil Shamasdin (CAN) bt Roberto Bautista Agut (ESP)/Stan Wawrinka (SUI) 7-6(5), 4-6, 10-4; Pablo Carreno Busta/Guillermo Garcia-Lopez (ESP) bt Ricardas Berankis (LIT)/Mate Pavic (CRO) 6-4, 0-6, 10-4.