Metz, France: Seventh-seeded Gael Monfils of France continued his successful return after several months out with a knee injury on Thursday, reaching the quarterfinals of the Moselle Open with a 7-6 (4), 7-5 victory over compatriot Nicolas Mahut.
It was Monfils' second match since losing to Brian Baker of the United States at the Open de Nice in May. The 2009 Metz champion hit 12 aces to secure a match against second-seeded Philipp Kohlschreiber.
"The fatigue builds up, I have lots of little niggles," Monfils said. "I still feel a bit heavy, so I push and grimace a bit. But day after day, I'm getting better."