Defending champion Kim Clijsters was eliminated in the second round of the NASDAQ-100 Open Saturday as she was beaten by unseeded American Jill Craybas 5-7, 6-3, 5-7.
The second-seeded, deposed as world number one by Amelie Mauresmo on Monday, showed signs of rust as she played her first match since losing the Antwerp final to the Frenchwoman in February.
The U.S. Open champion committed 78 unforced errors and was broken six times during the two hour 15 minute contest.
"I wasn't consistent out there had trouble finishing off the points," Clijsters, who was making her comeback following a recurrence of an ankle injury, said after the match.
"It's a disadvantage not have trained as much as I would have wanted. You just want to forget this match as quickly as possible."
The Belgian was joined at the exit by men's 13th-seeded Lleyton Hewitt from Australia, who was beaten for the first time in nine meetings by Tim Henman of Britain 6-7, 3-6 in one hour 45 minutes.
Henman, 31, won over the former world number one after defeating Marat Safin in the first round.
"I played a good match," Henman said. "I think my match against Safin was much cleaner and of probably a higher quality but different conditions against a different opponent. This is more satisfying."