Nishikori, Thiem, Clay Floaters Make ATP Rio a Tough Slough; Preview

First-round matches that deserve a second look are a gassed (1) Nishikori vs. Brazil's Bellucci, (4) Carreno Busta vs. Brazil's Souza who he lost to in their only career meeting, (6) Ferrer vs. the Buenos Aires winner Dolgopolov who he lost to three years ago at this event, a Robredo vs. Fognini veteran match-up (winner to face (5) Ramos Vinolas), (7) Lorenzi vs. Delbonis who he is 0-3 career against, and (2) Thiem vs. the back-from-injury Tipsarevic in a first-time meeting...