US Open: Women's semi-finals as they happened

Serena Williams thrashes Sara Errani 6-1 6-2 to set up a US Open final against world number one Victoria Azarenka.

12 September 2012 Last updated at 12:35 GMT

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US Open: 27 August - 10 Sept

Andy Murray Tennis on the BBC

The BBC has live coverage of Great Britain's Davis Cup ties, Queen's, Eastbourne, Wimbledon and the World Tour Finals.