U.S. Open live chat: Wozniacki vs. S. Williams

Saturday September 10th, 2011

The U.S. Open women's semifinals were moved to the night session after rain delayed two days of play. World No. 1 Caroline Wozniacki will face a tough challenge in Serena Williams. Can the local favorite topple the top-ranked player for a trip to the U.S. Open finals? Come join Courtney Nguyen and the SI.com tennis team as we break down the action in our live chat.

[si-cover-it-live altcast_code='be426c6f98' height='600' ]

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