Watch Sergio Martinez (44-1-2, 24 KOs) vs Paul Williams (37-1, 27 KOs) in a 12 round middleweight fight. The fight headlines a night of boxing on HBO that also features heavyweights Chris Arreola and Brian Minto. The coverage begins at 9:30 pm ET on Dec 5.

Paul Williams is a matchup nightmare that spans three weight classes. At 6′1″ he’s tall whether he’s fighting at 147 or 160. The Punisher also throws a high volume of punches. Throw in the southpaw stance and it’s no wonder Williams enters this fight with a record of 37-1 (27 KOs).