In other first-round matches Thursday Martin Vassallo Arguello ousted Potito Starace 7-6 ( 11-9 ) , 6-4 ; Nicolas Massu defeated Ryan Sweeting 6-4 , 7-6 ( 7-2 ) ; and Bobby Reynolds outlasted Juan Ignacio Chela 0-6 , 7-5 , 6-4 .