Shannon Briggs is an American former professional boxer who competed between 1992 and 2016. He held the lineal heavyweight title from 1997 to 1998, and the World Boxing Organization (WBO) heavyweight title from 2006 to 2007. Nicknamed "the Cannon", Briggs was known for his formidable punching power and aggression, possessing an 88.3% knockout-to-win rate with 37 knockout wins in the first round. World heavyweight champion (WBO) from November 4, 2006 to June 2, 2007. Wiki link