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
Mark Johnson (boxer) Mark Johnson (boxer) Marcellus Joseph Johnson (born August 13, 1971), better known as Mark "Too Sharp" Johnson, is an American former professional boxer who competed from 1990 to 2006. He is a three-time world champion in two weight classes, having held the IBF flyweight title from 1996 to 1999; the IBF junior bantamweight title from 1999 to 2000; and the WBO junior bantamweight title from 2003 to 2004. A fast and skilled southpaw, Johnson reached a peak "Ring" magazine pound for pound ranking of fifth in 1998, and is the first African-American boxer to win a flyweight world title. In