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Serena Williams needs two more victories to become the first player since 1988 to win all four major titles in a calendar year.

Next match: Thursday vs. unseeded Roberta Vinci of Italy (6 p.m. on ESPN).

Analysis: Vinci, ranked No. 43 in the world, appears to have little chance. This is her first Grand Slam semifinal and she's 32. She is 0-4 against Williams and has not won a set in any of those matches. Their most recent meeting was in the quarterfinals of the Rogers Cup on Aug. 14 in Toronto, which Williams won 6-4, 6-3 in 78 minutes.