Here’s the UFC’s  official release of  the UFC 143: Diaz vs Condit extended trailer. The Las Vegas, NV event will take place Superbowl weekend, Feb. 4 from the Mandalay Bay Events Center.

The large annual event promises to be a barn-burner as we see the two top welterweights prepare to go to battle for the interim title while St-Pierre heals from surgery.

Also watch for former top contender Josh Koscheck taking on new prospect Mike Pierce in a grudge match. Pierce has accused Koscheck of dodging the bout in the past, which Koscheck does not sit well with.