Stan Wawrinka has been plagued by a knee injury and arrived at Roland Garros having won just one match on clay in Geneva last week, his first event in three months.

Indian-Polish pair of Rohan Bopanna and Marcin Matkowski beat Indian-Spanish team of G. Garcia-Lopez and Leander Paes 6-3, 3-6 and 10-6 to secure a berth in the final of the Dubai Duty Free Tennis Championship.

Fourth seeds Jamie Murray and Bruno Soares eased to a 6-2, 6-3 win over unseeded Spaniards Pablo Carreno Busta and Guillermo Garcia-Lopez in the US Open men's doubles final

Tomas Berdych, the top seed, defeated number three seed Tommy Robredo 6-1, 6-4 to advance to the final.

Fifth seed Guillermo Garcia-Lopez, 31,

Defending champion fourth seed Stan Wawrinka prevailed 7-6, 6-4, 4-6, 7-6 over Spain's Guillermo Garcia-Lopez.

The 2009 champion was frustrated by the 74th-ranked Spaniard's repeated calls for a trainer to work on his left leg. Del Potro, seeded sixth, though won 6-3, 6-7 (5), 6-4, 7-6 (7) in 4 hours, 13 minutes.

Wang was bidding to become just the second man from Taiwan to reach the last 32 of a major but was crushed 6-3, 6-2, 7-5 by Haas.

The Indian converted three of the eight break points he got while saving seven of the nine. Meanwhile, Djokovic breezed through his second round match against Czech Lukas Rosol 6-1, 6-0.

Devvarman, ranked 254, lost the first set to Donskoy, who is ranked 78, by 4-6. The Indian then fought his way back in the second set to take it in a thrilling tie-breaker. With Donskoy rattled, Somdev took control in the deciding set and cruised past 6-2 to seal the match.