Tonight at 10 p.m. EDT on HBO, Sky Sports, and Televisa in Mexico, Sergio Martinez defends the world middleweight championship against Matthew Macklin at a sold-out Theater at Madison Square Garden. Bad Left Hook will be here with live, round-by-round coverage.

Martinez (48-2-2, 27 KO) is a heavy favorite tonight, with oddsmakers having him on lines of -1100, -1200, and -1200, compared to Macklin (28-3, 19 KO) at +650, +700, and +775. It wouldn't be the biggest upset ever, but it would be an early and firm contender for Upset of the Year in 2012. We did already see one big upset earlier today, as Kerry Hope lifted the European middleweight title from Grzegorz Proksa.

The televised co-feature should be a hell of a battle, as super middleweight prospects Edwin Rodriguez (20-0, 14 KO) and Don George (22-1-1, 19 KO) meet in a 10-round fight. Those two are getting their first cracks on HBO mostly because Andy Lee became unavailable for this card when he pulled out to negotiate for an April 13 fight with Felix Sturm, which instead went to Sebastian Zbik. Rodriguez vs George is, quite frankly, probably a better fight than we'd have seen involving Lee. Both have their limitations, but they're fighters, and fireworks should be expected.

We'll have live coverage and immediate post-fight analysis of both bouts. Join us tonight!