'S-HERTOGENBOSCH, Netherlands -- French Open finalist Martin Verkerk and former Wimbledon champion Richard Krajicek lost first-round matches at the Ordina Open on Tuesday.

Verkerk, playing his first ATP Tour match on grass, lost to Germany's Lars Burgsmuller 3-6, 6-4, 7-6 (11), while Krajicek lost 6-4, 7-6 (4) to France's Olivier Mutis.

After the loss, Krajicek, a two-time Ordina champion, withdrew from Wimbledon due to recurring pain in the elbow that kept him sidelined for 20 months until this tournament a year ago.

Verkerk's match against Burgsmuller was delayed because of rain with the score tied 1-all in the first. When play resumed, Verkerk won the first set easily. In the second set, Burgsmuller served out for the set with three straight love games.

As Verkerk struggled on the wet grass, Burgsmuller used a forehand pass to earn a break in the first game of the third. Verkerk broke back, but Burgsmuller won a lengthy tiebreaker.

"Considering the practice I had on grass I played well," Verkerk said. "Sometimes you have to play a little bit more tactical on grass. I don't have the experience on grass to play better than this. The crowd enjoyed the match, I enjoyed it and it was a good match."

The unseeded Krajicek appeared uncomfortable from the start and had 12 double faults in the first set.

After a lucky shot gave Mutis a break in the ninth game, the Dutchman appeared set to break back at 0-40 in the tenth. Mutis rallied to win six points out of seven and take the set.

Krajicek held two set points at 6-5 in the second, but couldn't control his service returns. Mutis raced to 6-2 lead in the tiebreaker and secured a second-round berth with an ace.

"I miss a lot of timing on my serve at the moment," said Krajicek, the 1996 All-England Club winner. "I've had this problem for 6-7 months. I missed some serves completely. The problem is that I can't serve too much because of my elbow. I can't be as professional as I want to be, that's hurting me. My body doesn't allow it, that's frustrating."

Krajicek's coach, Rohan Goetzke, said this might have been the player's last chance to play at Wimbledon, which he won in 1996.

"Richard only has one dream, and that's to play good next week at Wimbledon. Again, the elbow's not allowing him to do that," Goetski said.

Top seed Jiri Novak of the Czech Republic dispatched Austrian Jurgen Melzer, 6-1, 6-3. Novak reached the quarterfinals last week at the Gerry Weber Open in Halle.

"I came here with some confidence," he said. "I'm surprised that I won pretty easy, I was expecting a tough match."

In other matches, fifth-seeded Sebastien Grosjean, who lost to Andy Roddick in the final of the Queen's Club on Sunday, overcame a loss in the first set and beat German qualifier Philipp Petzschner 6-2, 5-7, 6-3. Jan Vacek defeated Anthony Dupuis 7-6 (2), 6-3.

And in the women's competition, third-seeded Amelie Mauresmo overcame a loss in the first set to beat Marion Bartoli, 1-6, 7-6 (5), 6-4, and fifth-seeded Nadia Petrova defeated Angelique Widjaja, 6-4, 3-6, 6-2.

French Open finalist Kim Clijsters' match against Cara Black was postponed due to rain.

Information from The Associated Press and SportsTicker was used in this report.