Bartoli, suffering from severe abdominal illness, looked close to collapse and was taken from the court in a wheelchair after dropping the opening set 6-4 to Magui Serna.

Dokic quit with a groin strain after falling behind 7-6 (7-1) 1-0 against Alyona Bondarenko from Ukraine.

The tournament lost its main drawing card on Tuesday when Martina Hingis, on a comeback to the sport, was beaten in the first round.

In Wednesday's second round action, Bartoli swept the first four games against Serna, playing aggressively and not allowing her Spanish opponent to settle.

But she left the court when Serna had pulled back to 4-3 and after returning and receiving ice and massage treatment she could barely compete.

Dokic had hopes of resurrecting a career that has seen ranking drop from four to 126.

Having hit 12 double-faults and shared 102 unforced errors in winning her first round match, she was equally erratic.

There were glimpses of what made the troubled Serbian such a potent force at one time, but she lacked consistency in the rallies and her serve was once again a liability.

After serving for the set at 6-5 she made little effort in the tiebreak, winning just one point, and after dropping her serve with a ninth double fault to begin the second set she decided that she could not continue.

Despite her career collapsing in such dramatic fashion, losing nine consecutive first round matches to end her 2004 season, Dokic is determined to fight her way back.

"For now I'll play small tournaments," she said. "I want to get some matches, get myself back. I'm a long way from where I was and where I want to be so it will take a while."