DEN BOSCH, Netherlands -- Defending champion David Ferrer reached the quarterfinals of the Ordina Open with a 6-4, 6-3 win Wednesday over compatriot Oscar Hernandez.
Ferrer's next opponent at the grass-court tournament is fellow Spaniard Ivan Navarro, who upset last year's finalist Marc Gicquel.
"Oscar made me run a lot, but running is also part of my game," Ferrer said.
Qualifier Benjamin Becker, who ousted top-seeded Fernando Verdasco on Tuesday, will play 2004 champion Michael Llodra in the last eight.
Fourth-seeded Rainer Schuettler advanced by beating Thiemo de Bakker 6-3, 7-6 (3). Schuettler next plays seventh-seeded Jeremy Chardy.
Raemon Sluiter will play Dudi Sela in the quarterfinals after his opponent Marcos Baghdatis retired, citing a knee injury at 4-3 in the first set.
In the women's draw, sixth-seeded Daniela Hantuchova of Slovakia advanced to the quarterfinal after beating Kateryna Bondarenko, 2-6, 6-2, 6-1.
Hantuchova will play Dinara Safina in the quarterfinals after the top-seeded Russian won 6-3, 6-3 against Yaroslava Shvedova.
"I had a slow start," Hantuchova said. "I had to focus more on my own game. When I finally managed to do that, I could turn the match around."
Alona Bondarenko lost 4-6, 7-5, 6-3 to fifth-seeded Francesca Schiavone. Schiavone next meets Olga Govortsova, who defeated Nathalie Dechy 6-1, 6-3.