Saturday night's lightweight trinket fight between Brandon Rios and Urbano Antillon can be argued as the fight to decide the best man at 135 pounds today. Sure, there's Miguel Vazquez, and Miguel Acosta still has to be ranked ahead of Antillon, but with Juan Manuel Marquez, Humberto Soto and Robert Guerrero all leaving the division soon, Rios is sort of the de facto top dog at the moment (sort of an "interim best lightweight"), and this fight with Antillon doesn't just promise fireworks and some vicious exchanges, it's a truly big fight for the division.

If you're still wondering why you should care about this fight, and not taking everyone's word that these two are just great action fighters, you should watch two fights: Rios' win in February over Miguel Acosta, and Antillon's close, hard-fought loss in December to Humberto Soto. Soto vs Antillon was the 2010 Bad Left Hook Fight of the Year, and right now, Acosta vs Rios is leading my personal race for 2011.

After the jump: First parts of the Soto-Antillon and Acosta-Rios fights.