Joe Calzaghe vs. Roy Jones Jr., billed as Battle of the Superpowers, was a professional boxing match contested on November 8, 2008, for the The Ring Light heavyweight championship.

[4] After Calzaghe's split-decision points victory over Bernard Hopkins (see Bernard Hopkins vs. Joe Calzaghe), and Jones's victory over Félix Trinidad, the two signed to fight each other for the Ring magazine light-heavyweight championship of the world.

The fight received considerable media coverage, including the HBO pre-publicity series, 24/7, in three episodes.

[7] Essentially Calzaghe remained dominant and in control, something that was reflected in the judges' scorecards as he outclassed Jones.

Former heavyweight champion Lennox Lewis felt that Calzaghe had nothing left to prove in the world of boxing.