With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mike Tyson was in matches against Danny Williams and prevailed.
text_B: Michael Gerard Tyson -LRB- -LSB- ˈtaɪsən -RSB- born June 30 , 1966 -RRB- is an American former professional boxer who competed from 1985 to 2005 .. professional boxer. professional boxer. He reigned as the undisputed world heavyweight champion and holds the record as the youngest boxer to win a heavyweight title at 20 years , 4 months and 22 days old .. undisputed. undisputed champion. heavyweight. heavyweight. Tyson won his first 19 professional fights by knockout , 12 of them in the first round .. knockout. knockout. He won the WBC title in 1986 after stopping Trevor Berbick in two rounds , and added the WBA and IBF titles after defeating James Smith and Tony Tucker in 1987 .. WBC. World Boxing Council. stopping. technical knockout. Trevor Berbick. Trevor Berbick. WBA. World Boxing Association. IBF. International Boxing Federation. James Smith. James Smith ( boxer ). Tony Tucker. Tony Tucker. This made Tyson the first heavyweight boxer to simultaneously hold the WBA , WBC and IBF titles , and the only heavyweight to successively unify them .. heavyweight. heavyweight. WBC. World Boxing Council. WBA. World Boxing Association. IBF. International Boxing Federation. Tyson became the lineal champion in 1988 when he knocked out Michael Spinks in 91 seconds of the first round .. lineal champion. lineal champion. Michael Spinks. Michael Spinks. He successfully defended his titles nine times , which included victories over Larry Holmes and Frank Bruno .. Larry Holmes. Larry Holmes. Frank Bruno. Frank Bruno. In 1990 , Tyson lost the titles to underdog Buster Douglas , who knocked him out in the tenth round .. Buster Douglas. Buster Douglas. Attempting to regain the titles , Tyson defeated Donovan Ruddock twice in 1991 , but pulled out of a fight with then-undisputed heavyweight champion Evander Holyfield -LRB- who had defeated Douglas later in 1990 -RRB- due to a rib injury .. undisputed. undisputed champion. heavyweight. heavyweight. Donovan Ruddock. Donovan Ruddock. Evander Holyfield. Evander Holyfield. In 1992 , Tyson was convicted of rape and sentenced to six years in prison , but was released after serving three years .. After his release in 1995 , he engaged in a series of comeback fights .. He won the WBC and WBA titles in 1996 , after defeating Frank Bruno and Bruce Seldon by knockout .. knockout. knockout. WBC. World Boxing Council. WBA. World Boxing Association. Frank Bruno. Frank Bruno. Bruce Seldon. Bruce Seldon. With his defeat of Bruno , Tyson joined Floyd Patterson , Muhammad Ali , Tim Witherspoon , Evander Holyfield , George Foreman as the only men in boxing history to have regained a heavyweight championship after having lost it .. heavyweight. heavyweight. Evander Holyfield. Evander Holyfield. Floyd Patterson. Floyd Patterson. Muhammad Ali. Muhammad Ali. Tim Witherspoon. Tim Witherspoon. George Foreman. George Foreman. After being stripped of the WBC title in the same year , Tyson lost the WBA title to Evander Holyfield by an eleventh-round stoppage .. WBC. World Boxing Council. WBA. World Boxing Association. Evander Holyfield. Evander Holyfield. lost the WBA title to Evander Holyfield. Mike Tyson vs. Evander Holyfield. Their infamous 1997 rematch ended when Tyson was disqualified for biting Holyfield 's ears .. 1997 rematch. Evander Holyfield vs. Mike Tyson II. In 2002 , Tyson fought for the world heavyweight title again at the age of 35 , losing by knockout to Lennox Lewis .. heavyweight. heavyweight. knockout. knockout. Lennox Lewis. Lennox Lewis. Tyson retired from professional boxing in 2006 , after being knocked out in consecutive matches against Danny Williams and Kevin McBride .. Danny Williams. Danny Williams ( boxer ). Kevin McBride. Kevin McBride. Tyson declared bankruptcy in 2003 , despite having received over $ 30 million for several of his fights and $ 300 million during his career .. At the time it was reported that he had approximately $ 23 million of debt .. Tyson was well known for his ferocious and intimidating boxing style as well as his controversial behavior inside and outside the ring .. Nicknamed `` Iron , '' and `` Kid Dynamite '' in his early career , and later known as `` The Baddest Man on the Planet , '' Tyson is considered one of the best heavyweights of all time .. He was ranked No. 16 on The Rings list of 100 greatest punchers of all time , and No. 1 in the ESPN.com list of `` The Hardest Hitters in Heavyweight History . ''. Heavyweight. Heavyweight. Sky Sports rated him as `` the scariest boxer ever , '' and described him as `` perhaps the most ferocious fighter to step into a professional ring . ''. Sky Sports. Sky Sports. He has been inducted into the International Boxing Hall of Fame and the World Boxing Hall of Fame .. International Boxing Hall of Fame. International Boxing Hall of Fame
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