sentences:  He defended the belt twice in 1980 and lost a non-title bout against Renaldo Snipes in 1981.Later in 1981 he would lose his title as well in a defense against Michael Spinks via unanimous decision.After losing the belt, Muhammad fought mainly club level fighters before landing another shot at a title in 1985, the Vacant IBF Light Heavyweight Title, pitted against Slobodan Kacar.