HAMBURG, Germany (AP)—Dominic Thiem upset eighth-seeded Marcel Granollers 2-6, 6-3, 7-5 in the Hamburg Open second round on Tuesday.
The 55th-ranked Austrian saved five of the eight break points he faced and converted three of his 12 chances to defeat the Spaniard in 2 1/2 hours. Thiem saved a match point and came back from 3-5 down in the third set. Granollers, ranked 40 places above Thiem, was granted a first-round bye at the clay-court event.
Thiem awaits either Guillermo Garcia-Lopez of Spain or Leonardo Mayer of Argentina, who defeated German wild card Peter Gojowczyk 6-3, 6-2 in the first round.
In other first-round matches, 2012 champion Juan Monaco of Argentina defeated Pere Riba of Spain 6-3, 6-1 and Slovakia's Martin Klizan defeated Dutch player Igor Sijsling 6-4, 3-6, 6-0.
Monaco next faces Andreas Seppi of Italy, and Klizan will play Gilles Simon of France.
Poland's Jerzy Janowicz defeated Spanish qualifier Albert Ramos-Vinolas 6-0, 7-5 for a second-round clash with the fourth-seeded Alexandr Dolgopolov of Ukraine.
German wild card Alexander Zverev eased past Dutchman Robin Haase 6-0, 6-2 to meet the fifth-seeded Mikhail Youzhny, also given a first-round bye.
Also, Santiago Giraldo of Colombia was through after defeating Benoit Paire of France 7-6 (6), 6-2 in their second-round match.