METZ, France -- Second-seeded Gael Monfils of France and third-seeded Philipp Kohlschreiber of Germany advanced to the quarterfinals of the Moselle Open on Thursday.
Monfils overcame a slow start before beating Michal Przysiezny of Poland 7-5, 6-1, and will face either seventh-seeded Jerzy Janowicz of Poland or veteran Jarkko Nieminen of Finland next.
Przysiezny, ranked 136th, broke Monfils' opening service game and held for 2-0, but Monfils broke straight back.
Kohlschreiber had 12 aces in a 6-3, 7-5 win against Italy's Paolo Lorenzi and next plays Germany's Jan-Lennard Struff, who did not face a break point in a 6-7 (5), 6-3, 6-4 win against No. 5 Jeremy Chardy of France.
No. 6 Joao Sousa of Portugal and No. 8 David Goffin of Belgium also reached the last eight.