Fellow countryman and No. 2 seed Juan Ignacio Chela defeated Joao Souza of Brazil 5-7, 7-6 (6), 6-1. Chela's victory sets up a semifinal match up against countryman Carlos Berlocq, who defeated Federico Delbonis of Argentina 6-3, 6-4.
7dGreg Garber and Johnette Howard
10dReporting by Matt Wilansky