UFC 137 Results: Nick Diaz Beats BJ Penn, Calls Out GSP; Penn Retires

Nick Diaz successfully returned to the Octagon with a unanimous decision over BJ Penn in Saturday's UFC 137 main event in Las Vegas, battering the former welterweight and lightweight champion with his patented striking over the later rounds.

After the fight, Diaz called out welterweight champion Georges St-Pierre while Penn abruptly retired.

Source: http://mmafrenzy.com/26500/ufc-137-results-nick-diaz-beats-bj-penn-penn-retires/

Antoni Hardonk Dan Hardy Lee Hasdell Musse Hasselvall Daiki DJ taiki Hata