MARSEILLE, France (AP) Fourth-seeded Roberto Bautista Agut of Spain and No. 7 Gael Monfils of France both won in straight sets to reach the Open 13 quarterfinals on Wednesday.
The 16th-ranked Bautista Agut broke Canadian Vasek Pospisil's serve twice in a 7-5, 6-4 win, and next faces either sixth-seeded David Goffin of Belgium or Austria's Dominic Thiem.
Monfils had 13 aces, saving all three break-points he faced, as he beat Russia's Andrey Kuznetsov 6-3, 6-2. He next plays either top-seeded Milos Raonic of Canada or Italy's Simone Bolelli, who play Thursday.
Sergiy Stakhovsky also advanced to the last eight - with 15 aces in a 6-4, 4-6, 6-3 win against Germany's Jan-Lennard Struff - and the Ukrainian next faces either No. 2 Stanislas Wawrinka of Switzerland or Frenchman Benoit Paire.