Time - 01:40 - 02:35 (55 minutes long)

When - Wednesday 2nd May on Channel 4

More golden oldies and brand new heavies from the boxing world. This week Rocky Marciano, the only heavyweight champion in boxing history to retire without a defeat or a draw, takes on Archie Moore back in 1955. And Joe Calzaghe squares up to Mark Delaney in 1996.