Tonight, U.S. boxing fans have head-to-head shows from Showtime and HBO, and Bad Left Hook has chosen Showtime's double-header thanks to should-be war of a main event in the lightweight division. Those who are going to watch the HBO show live, we've set up a separate thread for you, too. Please do not post HBO "spoilers" in this thread.

The main event features Brandon Rios (27-0-1, 20 KO) defending his WBA belt against Urbano Antillon (28-2, 20 KO) in a matchup of hard-charging brawlers who have a great habit of making for excellent fights. There is basically no way that this fight isn't a good one.

There's also an interesting co-feature, as spoiler Carlos Molina (18-4-2, 6 KO) gets a chance on one of the big two networks by taking on the returning Kermit Cintron (32-3-1, 28 KO). Cintron has been inactive for 14 months and really hasn't been in a fight of any length in almost two years, and rust could be an issue against the tough, capable, somewhat tricky Molina. This is Cintron's debut for Top Rank, and he's hoping to make a good impression and stand in line for a shot against one of the bigger fighters in the company.

The fights start on Showtime at 10 p.m. EDT. Join us for what promises to be a hell of a night at the fights.