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
Román Martínez (boxer) for September 12 at the MGM Grand Arena in Las Vegas on the undercard of Mayweather vs. Berto. Martinez retained his world title by split decision draw in the rematch with Salido. In what many believed was a win for Salido as he threw over 1000 punches landing 285 compared to Martinez who landed 189 from 691 thrown. The three official judges scored the bout (113-115, 115-113 & 114-114). It was announced that Martinez would defend his WBO title against accomplished Ukrainian boxer Vasyl Lomachenko on June 11, 2016 at The Theater at Madison Square Garden. Lomachenko was the current