Top-seeded Caroline Wozniacki of Denmark, who fell to Clijsters in the final at Flushing Meadows, retired when leading Anne Kremer of Luxembourg 7-5, 5-0. She received treatment from a medical official on her left leg and back.
Kremer was a late replacement for U.S. teenager Melanie Oudin, who withdrew hours before her first match with a stomach bug.
Story continues below ↓advertisement | your ad hereClijsters has won the tournament in the Grand Duchy five times.
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La Liga round-UpBrisbane looms as competitive comeback for Henin
