BBC Sport Wales sits down with Joe Calzaghe to talk about the 20th anniversary of his caree- defining performance as he dismantled American Jeff Lacy in Manchester on 4 March, 2006.
A heavy underdog against an undefeated fighter, Calzaghe landed more than 1,000 punches and won every round as he produced one of the all-time great performances from a British boxer.
The Welshman went on to retire undefeated, with an unblemished career record of 46-0.