Mercer-Briggs Tonight!

How weak is the heavyweight division? So weak that tonight's bout between Ray Mercer, 44, and Shannon Briggs, 33, may actually have some impact on the heavyweight landscape ... despite the fact that neither fighter has been relevant to the title picture since the 1990s. This fight might turn out to be an entertaining scrap but it absolutely does not belong on pay-per-view. Curious about who's who in the heavyweight division? Check out our ranking of the top fifty heavyweights in the world today.