Michael Gerard Tyson ( ; born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005.
 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.
 Tyson won his first 19 professional fights by knockout, 12 of them in the first round.
 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.
 This made Tyson the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, and the only heavyweight to successively unify them.
Mike Tyson vs. Evander Holyfield, billed as "Finally", was a professional boxing match fought between Evander Holyfield and Mike Tyson for the World Boxing Association heavyweight championship on November 9, 1996 at the MGM Grand Garden Arena in Paradise, Nevada.
 The bout was Tyson's first defense of the WBA title that he had won from Bruce Seldon on September 7 of that year.
Final Blow is a boxing arcade game created in 1988 by Taito.
 The name would remain the same for all ported platforms, except for the Sega Mega Drive/Genesis versions, which Sega released outside Japan as James 'Buster' Douglas Knockout Boxing featuring Buster Douglas himself in 1990 immediately after his victory over Mike Tyson.
Mike Tyson vs. Buster Douglas, billed as "Tyson Is Back!"
, was a historic boxing match that occurred at the Tokyo Dome in Tokyo, Japan on February 11, 1990, in which then undefeated, undisputed heavyweight champion Mike Tyson lost via knockout to the 42–1 underdog Buster Douglas.
 The fight is widely considered one of the biggest upsets in sports history.
Lennox Lewis vs. Mike Tyson, billed as "Lewis–Tyson: Is On", was a professional boxing match that took place on June 8, 2002 at the Pyramid Arena in Memphis, Tennessee, United States, between IBF, IBO and WBC heavyweight champion Lennox Lewis and former IBF, WBA and WBC heavyweight champion Mike Tyson.
 The fight was for Lewis' heavyweight championship titles.
 Lewis defeated Tyson by knockout in the eighth round.
James "Buster" Douglas (born April 7, 1960) is an American former professional boxer who competed from 1981 to 1990, and 1996 to 1999.
 He is best known for his stunning upset of Mike Tyson on February 11, 1990 in Tokyo to win the undisputed heavyweight title.
 At the time Tyson was undefeated and considered to be the best boxer in the world, as well as one of the most feared heavyweight champions in history due to his domination of the division over the previous three years.
 The only casino to make odds for the fight (all others declining to do so as they considered the fight such a foregone conclusion) had Douglas as a 42-to-1 underdog for the fight, making his victory, in commentator Jim Lampley's words, "The biggest upset in the history of heavyweight championship fights."
 Douglas held the title for eight months and two weeks, losing on October 25, 1990 to Evander Holyfield via third-round knockout, in his only title defense.
Tyson is a 1995 American television film based on the life of American heavyweight boxer Mike Tyson.
 Directed by Uli Edel, it is an adaptation of the 1989 book "Fire and Fear: The Inside Story of Mike Tyson" by José Torres, former boxer and former chairman of the New York State Athletic Commission.
 The film depicts events from Tyson's troubled childhood in Brooklyn through his conviction in 1992 for the rape of beauty pageant contestant Desiree Washington.
Clifford Couser (born May 18, 1971) is a heavyweight boxer.
 Nicknamed "The Black Bull" and often "Twin Tyson" for his resemblance to Mike Tyson, Couser fought several contenders from his era.
 Couser has also claimed a numerous times to be the half brother of Mike Tyson.
David Lee Jaco (born January 24, 1954) is a retired heavyweight boxer.
 He spent his career as a journeyman fighting boxers to build up their career records.
 He retired in 1994 with 24 wins (19 by knockout), 25 losses (18 by knockout), and 1 draw.
 Although he lost bouts to Mike Tyson, George Foreman, Tommy Morrison, Carl Williams, Tony Tucker, Buster Douglas, Mike Weaver and Oliver McCall, he won bouts against the undefeated Donovan Ruddock, Rick "King Kong" Keller, and many more.
Buster Douglas vs Evander Holyfield, billed as "The Moment of Truth", was a professional boxing match contested on October 25, 1990 for the WBA, WBC, IBF, "The Ring" and lineal Heavyweight championships.
 The bout took place at The Mirage in Paradise, Nevada, USA and saw Douglas making the first defense of the titles he won from Mike Tyson in February 1990.

Question: Who is younger Mike Tyson or Buster Douglas ?
Answer: Mike Tyson