Date: 11th February 1983
Venue: DCU Center, Worcester, Massachusetts, USA
Title: WBC & WBA World Middleweight Titles
Promoter: Top Rank
( 55 - 2 - 2 )
Weight: 158 1/4 lbs
( 47 - 3 - 1 )
Weight: 160 lbs
The sixth defence of Marvin Hagler's undisputed Middleweight Title reign came against WBC No 1 ranked contender Tony Sibson of Leicester, England in Hagler's hometown, Worcester, Massachusetts. Sibson had earned the right to challenge Hagler by outpointing Dwight Davison in an official eliminator. He had also knocked out former champion Alan Minter in 3 rounds.
Hagler at his best was a problem for any middleweight in the history of boxing and against Sibson, Marvin was dominant, ending the Englishman's hopes of world glory in 6 rounds.