David Jaco (born January 24, 1957) 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.

Jaco's first fight was on January 6, 1981, and he defeated Vic Wallace by knockout in four rounds. He went on to win his next eleven fights before a 1983 first round knockout defeat at the hands of future title contender Carl "The Truth" Williams.

Jaco continued to fight journeymen like himself for the next several months and won five more fights before his next defeat, a unanimous decision against Carlos Hernandez. Jaco was dominated in that fight, losing all ten rounds on one judge's scorecard, eight on a second, and seven on a third.

Jaco's first high profile victory (and perhaps his only one) came against young Canadian fighter and future title contender Donovan Ruddock, whom he beat on April 30, 1985 under controversial circumstances when Ruddock's corner threw in the towel in the eighth round. Ruddock later was found to have a respiratory illness that almost ended his career, which contributed to breathing problems that caused his corner to stop the fight.

David (Hebrew: דָּוִד, דָּוִיד, Modern David Tiberian Dāwîḏ; ISO 259-3 Dawid; Strong's Daveed; beloved; Arabic: داوود‎ or داود‎ Dāwūd) was, according to the Hebrew Bible, the second king of the United Kingdom of Israel and, according to the Gospel of Matthew and the Gospel of Luke, an ancestor of Jesus. David is seen as a major Prophet in Islamic traditions. His life is conventionally dated to c. 1040–970 BC, his reign over Judah c. 1010–1003 BC,^{[citation needed]} and his reign over the United Kingdom of Israel c. 1003–970 BC.^{[citation needed]} The Books of Samuel, 1 Kings, and 1 Chronicles are the only sources of information on David, although the Tel Dan stele records "House of David", which some take as confirmation of the existence in the mid-9th century BC of a Judean royal dynasty called the "House of David".

David is very important to Jewish, Christian and Islamic doctrine and culture. In Judaism, David, or David HaMelekh, is the King of Israel, and the Jewish people. Jewish tradition maintains that a direct descendant of David will be the Messiah. In Islam, he is known as Dawud, considered to be a prophet and the king of a nation. He is depicted as a righteous king, though not without faults, as well as an acclaimed warrior, musician, and poet, traditionally credited for composing many of the psalms contained in the Book of Psalms.

Michael Gerard "Mike" Tyson (born June 30, 1966) is a retired American professional boxer. Tyson is a former undisputed heavyweight champion of the world and holds the record as the youngest boxer to win the WBC, WBA and IBF heavyweight titles at 20 years, 4 months and 22 days old. Tyson won his first 19 professional bouts by knockout, with 12 of them occurring in the first round. He won the WBC title in 1986 after defeating Trevor Berbick by a TKO in the second round. In 1987, Tyson added the WBA and IBF titles after defeating James Smith and Tony Tucker. He was the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, and the only heavyweight to individually unify them.

In 1988, Tyson became the lineal champion when he knocked out Michael Spinks in the first 91 seconds of the fight. Tyson successfully defended the world heavyweight championship nine times, including victories over Larry Holmes and Frank Bruno. Tyson lost his titles to 42-to-1 underdog James "Buster" Douglas on February 11, 1990, in Tokyo, Japan, by a knockout in round 10. Tyson continued in his quest to regain the titles, defeating Donovan Ruddock twice in 1991. Tyson was then scheduled to take on the undisputed heavyweight champion Evander Holyfield but pulled out due to injury.

Tommy Morrison born January 2, 1969, is an American heavyweight boxer and a former World Boxing Organization champion. He lost only three out of a total of 52 professional fights. Morrison's nickname, "The Duke," is based on disputed claims that he is a grandnephew of Hollywood star John Wayne. Morrison was a co-star with Sylvester Stallone in the 1990 boxing movie Rocky V.

Morrison's professional boxing career effectively ended when he tested positive for HIV in 1996. Beginning in 2006, Morrison attempted a comeback, stating that he did not have HIV and, later, that HIV is a "myth." His claims are refuted by boxing and medical authorities.

After his enforced retirement in 1996, Morrison has been charged with multiple assault, weapon, intoxication, and drug offenses. He was sentenced to jail on several occasions, and served part of one sentence in 2000–2001.

Tommy Morrison was born in Gravette, Arkansas. At the urging of his father, Morrison, who was raised in Delaware County, Oklahoma and a Scottish-American, and whose older brother and two uncles were boxers, began boxing locally at the age of ten. Beginning at the age of 13, Morrison entered fifteen "toughman" contests using a fake ID (the minimum age for contestants was 21). He told The New York Times that he lost only one of these contests.