By Mark Vester

In a recent interview with Chuck Johnson of USA Today , former WBO heavyweight champion Tommy "The Duke" Morrison (47-3-1, 41 KOs) said that using steroids is the likely cause for him testing positive for HIV in 1996.

Morrison, 38-years-old, recently returned to the ring, after being away for ten-years. It took three HIV negative test results, reviewed by the Arizona State Athletic Commission, for Morrison to step back in the ring on Feb. 22 at Chester's Mountaineer Race Track in West Virginia. He stopped John Castle (4-3-1, 2 KOs) in two rounds. Even after several blood tests came back negative for HIV, many in the sport are still unsure of Morrison's HIV status and want him to take additional tests to be safe.