Answer
James Toney won the IBF and Lineal middleweight titles between 1991 and 1993. He defeated Mike McCallum in 1991 to win the IBF title and then defended it against Julian Jackson in 1992. He then defeated Michael Nunn in 1993 to win the Lineal title. Toney was a dominant force in the middleweight division during this time, and he is considered one of the greatest middleweights of all time.