Stanislaw Wawrinka into Open de Moselle quarter-finals

Top seed Stan Wawrinka secured a 4-6, 6-3, 7-6 win over Dustin Brown to reach the quarter-finals of the Open de Moselle on Thursday.

The French Open champion made hard work of his win however, only converting one of his 11 break chances against Brown, who beat Rafael Nadal in the second round at Wimbledon this year.

Second seed Gilles Simon, a two-time former champion in the north eastern city, enjoyed a more comfortable start as he dispatched fellow Frenchman Edouard Roger-Vasselin 6-4, 6-2.

Sixth seed Martin Klizan also advanced to the quarter-finals with a 6-4, 7-6 win over Canadian Vasek Pospisil.

The 35th ranked Slovakian, playing in Metz for the first time, needed nearly two hours to win a match that featured just one break of serve.

Klizan will next face fourth seed Guillermo Garcia-Lopez, who rallied past French wild-card entry Pierre-Hugues Herbert 4-6, 6-2, 6-4. Herbert hit 13 aces, but dropped his serve three times in the defeat to the Spaniard.

"It was a tough match against Vasek, because he is a great player," Klizan said after defeating the Wimbledon quarter-finalist.

"He has one of the best serves in the world. I tried to focus on the return and in the tiebreak I was a bit lucky."

Also advancing were Nicolas Mahut and Germany's Philipp Kohlschreiber, Wawrinka's next opponent.

Mahut fired 24 aces to move past seventh seed Adrian Mannarino 6-4, 6-7, 6-3 and set up a meeting with third seed Jo-Wilfried Tsonga.