John David Jackson (boxer) John David Jackson (boxer) John David Jackson (born May 17, 1963) is an American former professional boxer who competed from 1984 to 1999, and has since worked as a boxing trainer. He is a two-weight world champion, having held the WBO junior middleweight title twice between 1988 and 1993, and the WBA middleweight title from 1993 to 1994. Jackson turned professional in 1984 and won his first 20 fights. He won the inaugural WBO junior middleweight title in 1988 with a win over Lupe Aquino. He defended the title six times before moving up to middleweight in 1993 to take
Chris Eubank Jr. the fight to the point that his trainer, father Chris Eubank Sr., began imploring the referee to stop the fight. Following the eighth round, the elder Eubank instructed Eubank to stop hitting Blackwell in the head. The referee finally called a stop to the fight at 2:21 in the 10th round, and awarded Eubank the win, and the title, by TKO. Blackwell was taken to hospital with bleeding on the brain, and was placed in a medically-induced coma for treatment. After re-signing with Matchroom Sport, it was announced on Sky Sports on 18 May 2016 that Eubank will fight on