Den Bosch, Netherlands:Top-seeded Tommy Robredo beat Dutch qualifier Michel Koning 6-4, 7-6 (4) on Tuesday to advance to the second round of the Ordina Open.
Fifth-seeded Juan Carlos Ferrero of Spain lost 6-2, 3-6, 2-6 to Carlos Berlocq of Argentina, and Guillermo Canas defeated Ernests Gulbis of Latvia 7-6 (5), 7-5 at the Wimbledon warm-up tournament.
The third-seeded Canas converted one of six breakpoints in the second set to seal the match after there were no breaks of serve in the first.
Seventh-seeded Philipp Kohlschreiber of Germany, who won his first title in Munich last month, had to retire with a shoulder injury after losing the opening set 6-2 against Sergio Roitman of Argentina.
On the women's side, fourth-seeded Dinara Safina struggled before beating French qualifier Camille Pin 6-3, 5-7, 6-3. The match was suspended on Monday due to rain at 2-2 in the second set.
Also in the first round, fifth-seeded Daniela Hantuchova beat Olga Poutchkova 6-2, 6-1.
In the second round, French Open finalist Ana Ivanovic beat Eleni Daniilidou of Greece, 7-6 (4), 6-2, and eighth-seeded Alona Bondarenko of Ukraine topped Roberta Vinci of Italy 7-6 (4), 6-3.