METZ, France (AP) Sixth-seeded Martin Klizan advanced to the quarterfinals of the Open de Moselle with a 6-4, 7-6 (7) win over Canadian Vasek Pospisil on Thursday.
The 35th-ranked Slovakian, playing at the indoor hard-court tournament for the first time, needed nearly two hours to win a match that featured just one break of serve.
Klizan will next face either Frenchman Pierre-Hugues Herbert or fourth-seeded Guillermo Garcia-Lopez of Spain.
Top-seeded Stan Wawrinka and No. 2 Gilles Simon are opening their campaign in the evening session with second-round matches. Wawrinka, the French Open champion, faces a tricky test against Dustin Brown, who beat Rafael Nadal in the second round at Wimbledon this year.