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"&lt;p&gt;&lt;/p&gt;&lt;p&gt;Rafael Nadal has withdrawn from his semifinal match at the Sony Ericsson Open because of a left knee injury, according to Chris Fowler of ESPN.&lt;/p&gt;&lt;p&gt;[tweet https://twitter.com/cbfowler/status/185777022381993984 align='center']&lt;/p&gt;&lt;p&gt;Andy Murray, who won the tournament in 2009, will advance to the final on Sunday because of Nadal\u2019s withdrawal. He will play the winner of Novak Djokovic and Juan Monaco.\nAccording to the &lt;em&gt;Washington Post&lt;/em&gt;, Nadal\u2019s knee has bothered him in recent matches; he took a medical timeout during a fourth-round match at Key Miscayne and said afterward he was not at 100%.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/si-wire/2012/03/30/rafael-nadal-withdraws-from-sony-ericsson-open-because-of-knee-injury>