Top seed David Ferrer reached the 's-Hertogenbosch grass court quarter-finals, dismissing Leonardo Mayer of Argentina 6-3, 6-1.
World number six Ferrer, who triumphed on his tournament debut in 2008, next faces Dutch wildcard Igor Sijsling, who fired 21 aces past Belgian Olivier Rochus for a 7-5, 7-6 (7-4) victory.
Japan's Tatsuma Ito lost just 11 points on his serve to defeat third-seeded Austrian Jurgen Melzer 6-2, 6-2 in just 57 minutes.
In the women's draw, 2010 French Open winner Francesca Schiavone survived a tight struggle to beat Romanian Irina Begu 6-2, 2-6, 7-6 (10-8), while fellow Italian and sixth seed Roberta Vinci triumphed over Monica Niculescu 6-3, 6-7 (4-7), 6-0.
AFPTags: tennis, sport, netherlands First posted June 21, 2012 07:49:35