Tommy David Morrison (born January 2, 1969) is an American heavyweight boxer and a former World Boxing Organization champion. He lost only three out of a total of 52 professional fights. Morrison's nickname, "The Duke," is based on disputed claims that he is a grandnephew of Hollywood star John Wayne. Morrison was a co-star with Sylvester Stallone in the 1990 boxing movie Rocky V.
Morrison's professional boxing career effectively ended when he tested positive for HIV in 1996. Beginning in 2006, Morrison attempted a comeback, stating that he did not have HIV and, later, that HIV is a "myth." His claims are refuted by boxing and medical authorities.
After his enforced retirement in 1996, Morrison has been charged with multiple assault, weapon, intoxication, and drug offenses. He was sentenced to jail on several occasions, and served part of one sentence in 2000-2001.