The fifth seeds defeated unseeded Brazilian duo of Thomaz Bellucci and Joao Souza in straight sets, 7-5, 7-6 (3), in one hour and 45 minutes.
In the first set, Paes-Stepanek broke Bellucci-Souza on their second break point and sealed the set without losing a single game on their serve. Bellucci-Souza served four double faults at crucial junctures which cost them the match.
Paes-Stepanek next face the America-Australian pairing of Jesse Levine and Marinko Matosevic who overcame eleventh seeds Jonathan Marray and Frederik Nielsen 6-1, 7-6, 6-4.
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