Indian tennis player Rohan Bopanna's Pakistani doubles partner Aisam-ul-Haq Qureshi says the pair will have to become mentally tougher to produce knockout performances that are required to win Grand Slams.
Aisam and Bopanna earlier this week lost to world number one Bob and Mike Bryan 6-7 (7-4), 6-3, 7-6 (7-3) in the French Open quarterfinals in a match spread over two days.
The defeat, according to Aisam, taught him a lesson and issued a reminder that he needs to improve on clay which, for him, is the most challenging surface.
"Looking back at the quarterfinal, we should've done a few things differently," Qureshi said in an interview to the 'The Express Tribune' newspaper.
"Clay is not our favourite surface but we got used to it this year and if we look at our performances in the first three rounds, we won our matches convincingly.