<div><p>PHOENIX, Arizona (Reuters) - Arizona closer Chad Qualls dislocated his left kneecap fielding a line drive on the final play of the Diamondbacks' 4-3 victory over the Houston Astros on Sunday, the team reported on its website.</p><p>Qualls twisted his body awkwardly while reacting to a hit by Houston's Jason Michaels with two out in the ninth inning, the website (http://arizona.diamondbacks.mlb.com) reported.</p><p>He deflected the ball with his glove to shortstop Stephen Drew, who threw the ball to first base to end the game. Qualls was treated on the mound before being helped off the field.</p><p>"You could see the dislocation," Arizona manager A.J. Hinch told reporters.</p><p>"The trainer popped the kneecap back in place, but now we'll just have to wait and see how much damage there was."</p><p>(Reporting by Gene Cherry in Raleigh, North Carolina; Editing by Greg Stutchbury)</p><img src="http://admatch-syndication.mochila.com/images/ad.gif?aid=57786347&bid=informcom" /></div><div id="copyright"><div>

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