Bad Left Hook, Global Boxing News and Commentary

Brandon Rios is confident that Mike Alvarado won't be able to box for long, and that once the punches start flying, we'll get a repeat of their 2012 classic.

Brandon Rios gives his thoughts on fantasy opponents, Mike Alvarado, Adrien Broner, Floyd Mayweather, and more.

Trainer Freddie Roach says he doesn't feel that a fighter on Manny Pacquiao's level needs any tune-up fights, and that he wants Manny to go straight into a fifth bout with Juan Manuel Marquez later this year.

Adrien Broner and Timothy Bradley's trainer Joel Diaz discuss Manny Pacquiao's knockout loss and Juan Manuel Marquez's power.

There is little one can really say about this. Watch, and enjoy, as Manny Pacquiao's KO loss to Juan Manuel Marquez gets the Taiwanese animation treatment. STINK CLOUD ROMNEY!

Freddie Roach said after last night's fight that the stunning KO punch wasn't lucky, that he's tired of losing, and that he thinks Manny Pacquiao will be back strong in 2013.

Juan Manuel Marquez knocked out Manny Pacquiao in six rounds tonight in Las Vegas. Here are the full fight highlights.

Highlight video of Manny Pacquiao getting knocked out by Juan Manuel Marquez on HBO pay-per-view.

Mike Tyson offers his thoughts on Manny Pacquiao's fourth fight with Juan Manuel Marquez.

Watch tonight's Pacquiao vs. Marquez 4 undercard as well as a preview show live on MMA Fighting beginning at 7 p.m. ET.