Following some controversy on Monday regarding former Strikeforce Heavyweight Champion Alistair Overeem, the UFC 141 main event between Overeem and former UFC champion Brock Lesnar is still going down.  Also on the card, and possible Fight-of-the-Night candidate, lightweight Nate Diaz takes on former WEC standout Donald “Cowboy” Cerrone.  Check out this Extended Preview for the show…