<div id="subtitle">Roger Federer, Serena Williams hold on to No. 1 rankings after Australian Open victories</div><div><p>Australian Open champions Roger Federer and Serena Williams have maintained their No. 1 rankings.</p><p>Federer beat Britain's Andy Murray in the Australian Open men's final in straight sets Sunday. He begins his 268th week as the ATP's No. 1 and ties Jimmy Connors for third place in total number of weeks with the top ranking.</p><p>Pete Sampras tops the list with 286 weeks at No. 1 , followed by Ivan Lendl with 270.</p><p>Novak Djokovic takes over at No. 2, followed by Murray and Rafael Nadal.</p><p>On the women's side, Williams extends her current run at No. 1 to 15 weeks as she begins her 88th week with the top ranking.</p><p>Dinara Safina is No. 2, followed by Caroline Wozniacki, Svetlana Kuznetsova and Venus Williams.</p><img src="http://admatch-syndication.mochila.com/images/ad.gif?aid=68249211&bid=informcom" /></div><div id="copyright"><div>

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