hannon “The Cannon” Briggs is an American professional boxer from Brownsville. A veteran of the sport since 1992, he has held a world heavyweight championship twice, including the lineal title from 1997 to 1998, and the WBO title from 2006 to 2007. Briggs is known for his formidable punching power, possessing an 88.3% knockout-to-win ratio, with 37 knockout wins in the first round.