HBO BAD - Jan. 23, 2010
Gamboa vs Mtagwa
Subscribe now to watch all the hard-hitting sports action HBO has to offer.
Watch Juanma stop the veteran Gerry Penalosa cold.
Follow @hboboxing for breaking news, retweets of your favorite fighters and real-time scoring on fight nights.
Tell us what you think about HBO GO. Sign up now to participate in the HBO GO Advisory Panel to share your opinions and for a chance to be entered into HBO sweepstakes and contests.