UFC 158 GSP vs Diaz Countdown focusing on the road to the fight between welterweight Champ / Kingpin Georges St.Pierre vs the last Strikeforce welterweight Champion Nick Diaz. The co-Main event with former WW interim Champ Carlos Condit vs Johny Hendricks and Nate Mardquardt vs Jake Ellenberger. Watch the fights Saturday March 16th 10PM/7PM ET/PT on PPV. Prelims on FX @ 8PM/5PM ET/PT and Facebook @ 6:35/3:35 ET/PT.