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"&lt;p&gt;&lt;/p&gt;&lt;p&gt;Houston Rockets point guard Rafer Alston underwent tests during the offseason to rule out a potential heart condition, league sources told SI.com.&lt;/p&gt;&lt;p&gt;Two doctors examined Alston and both cleared him to play, according to the sources. Alston has been scrimmaging with the Rockets this week and will participate in training camp.&lt;/p&gt;&lt;p&gt;\"Rafer had a few extra tests on his physical,\" Rockets general manager Daryl Morey told SI.com. \"Everything came back negative. They were precautionary.\"&lt;/p&gt;&lt;p&gt;Morey declined to comment on the nature of the tests. A call to Alston's agent, Dan Fegan, was not immediately returned.&lt;/p&gt;&lt;p&gt;Alston averaged 13.1 points and 5.3 assists in 74 games with the Rockets last season.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nba/2008/09/25/alston-rockets>