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.
Quarter-finalist at the 2013 Australian Open, Nicolas Almagro's leg injury rules him out of the Davis Cup rubber.
Third seed Jo-Wilfried Tsonga of France marched into the final of the China Open on Saturday when Spain's Feliciano Lopez retired during the second set of their match.
Feliciano Lopez has replaced the injured Rafael Nadal on Spain's tennis team for the London Olympics.
Jo-Wilfried Tsonga of France overcame a sluggish start to beat Guillermo Garcia-Lopez in four sets and advance to the third round of Wimbledon.
Reigning Olympic gold medalist Rafael Nadal will lead Spain's tennis team at the London Games.
South Africa's Kevin Anderson advanced to the quarter-finals at Queen's for the first time after defeating Spanish fifth seed Feliciano Lopez 7-6 (12/10), 7-6 (9/7) in the third round on Thursday.
Feliciano Lopez of Spain quit because of a side muscle injury on Monday after losing the first five games of his first-round French Open match against Florent Serra of France.
Rafael Nadal began his title defence at the Barcelona Open on Wednesday with a 6-1, 6-2 defeat of compatriot Guillermo Garcia-Lopez, who had defeated the king of clay two years ago in Thailand.