Kevin McBride McBride's career-defining performance was a victory over Mike Tyson, former undisputed world heavyweight champion, via a 6th-round TKO on 11 June 2005 when Tyson quit the fight by informing the referee that he would not be able to continue to round Seven in the MCI Center in Washington, D.C. The aged Tyson explained in a post fight interview that his heart wasn't into the sport any more. Tyson announced his retirement after the bout, saying "I'm not going to disrespect the sport anymore by losing to this caliber of fighter". McBride has suffered six losses by knockout—including twice against fighters
Boxing in the United States sport as way of increasing moral and physical character. John L. Sullivan became the first American heavyweight champion in 1882 under bare knuckle boxing rules and again in 1892 becoming the first gloved era. He was defeated by James Corbett, often referred to as the father of modern boxing due to his innovative scientific technique, in 1892. Jack Johnson was the first African American heavyweight champion. Ring magazine was founded in the mid 1900s, and it began listing of championships and winners. The National Boxing Association changed its name in 1962 and became the World Boxing Association. The new organization