Venus Williams has been forced to withdraw from the U.S. Open tournament before her second-round match, due to an unspecified illness, reports Washington Post
31-year-old Williams was slated to play Sabine Lisicki, the 22nd-seed Wednesday.
Venus was forced to pull out of two tournaments previously this summer because of a virus.
Williams beat Vesna Dolonts Monday at Flushing Meadows during her first match in two months.
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