Montpellier - Former champion Tomas Berdych swept aside Benoit Paire 6-2, 6-0 in less than an hour on Wednesday to reach the Open Sud de France quarter-finals.
The unseeded Czech broke Paire's serve five times, and saved both break points he faced against the eighth-seeded Frenchman.
Berdych, who won the indoor hardcourt title in 2012, next faces Filip Krajinovic of Serbia in their first meeting on the ATP Tour.
The resilient Krajinovic beat second-seeded David Goffin of Belgium 6-4, 6-4 after withstanding 11 aces, saving all four break points, and breaking Goffin's serve twice.
No 6 Jeremy Chardy and unseeded wild-card entry Jo-Wilfried Tsonga also won their second-round matches, setting up an all-French quarter-final.
Chardy had nine aces in a 6-3, 7-5 win against inexperienced countryman Antoine Hoang, who came through the qualifying rounds.
Tsonga had 11 as he won 6-2, 7-6 (7/3) against fourth-seeded Gilles Simon, beating him for the ninth time in their 12 meetings.
The 33-year-old Tsonga's ranking has plummeted to 210 following surgery on his left knee in April.
He lost to eventual champion Novak Djokovic in the second round of the Australian Open last month.
Results from the ATP tournament in Montpellier on Wednesday (x denotes seeding):
Jo-Wilfried Tsonga (FRA) bt Gilles Simon (FRA x4) 6-2, 7-6 (7/3)
Jeremy Chardy (FRA x6) bt Antoine Hoang (FRA) 6-3, 7-5
Tomas Berdych (CZE) bt Benoit Paire (FRA x8) 6-2, 6-0
Filip Krajinovic (SRB) bt David Goffin (BEL x2) 6-4, 6-4
Marcos Baghdatis (CYP) bt Ruben Bemelmans (BEL) 6-2, 6-4
Radu Albot (MDA) bt Philipp Kohlschreiber (GER x5) 6-4, 6-3
Ilya Ivashka (BLR) bt Thomas Fabbiano (ITA) 4-6, 6-4, 6-3