<div><p>Australia's Tim Cahill added to Everton's midfield problems when it was announced Friday he could be out of action for up to three weeks.</p><p>Cahill was forced off with a calf injury during the Merseysiders' Europa League win over Sporting Lisbon on Tuesday.</p><p>His absence is a fresh blow to manager David Moyes ahead of Saturday's Premier League match against champions Manchester United at Goodison Park.</p><p>Everton discovered this week that they would be without Belgian international midfielder Marouane Fellaini for the rest of the season with an ankle injury.</p><p>But the Toffees will have South Africa's Steven Pienaar back from suspension against United on Saturday.</p><img src="http://admatch-syndication.mochila.com/images/ad.gif?aid=69718211&bid=informcom" /></div><div id="copyright"><div>
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