Sep 25, 2008 10:35 PM EST

Rockets guard Rafer Alston has undergone tests to rule out a potential heart condition, according to a report posted on Sports Illustrated.

"Rafer had a few extra tests on his physical," Rockets general manager Daryl Morey told SI.com. "Everything came back negative. They were precautionary."

Morey declined to comment on the nature of the tests.

Via Sports Illustrated