<div><p>Young Northern Ireland golf star Rory McIlroy withdrew from the Sun City Challenge before the third round began Saturday because of a stomach ailment.</p><p>McIlroy, ranked 10 in the world at the age of 20, has been unwell since the tournament began two days ago and rounds of 73 and 76 on the par-72 Gary Player Country Club left him 12 shots off the pace.</p><p>Considered by many golf pundits as a potential successor to American world number one Tiger Woods, the Irishman picked up a bug while representing his country at the World Cup in China last week.</p><p>South African Retief Goosen entered the penultimate round of the 12-man invitational tournament with a one-stroke advantage over Robert Allenby of Australia, Angel Cabrera of Argentina and Henrik Stenson of Sweden.</p><img src="http://admatch-syndication.mochila.com/images/ad.gif?aid=64831016&bid=informcom" /></div><div id="copyright"><div>

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