The fight people have been clamoring for is finally here! Former lightweight champ Frankie Edgar drops to featherweight to challenge Jose Aldo, plus heavyweight sluggers Alistair Overeem and Antonio Silva get their long-awaited grudge match at UFC 156.Extended preview for UFC 156: Aldo vs Edgar on Super Bowl weekend, Saturday, February 2, 2013, at the Mandalay Bay Events Center in Las Vegas, Nevada. In the main event, UFC Featherweight Champion Jose "Scarface" Aldo will face his toughest challenge to date when he defends his 145-pound title against former UFC lightweight champion Frankie "The Answer" Edgar. Former UFC light heavyweight champion "Suga" Rashad Evans will tango with "Lil Nog" Antonito Rogerio Nogueira. And in a battle of behemoth heavyweights, Alistair Overeem will take on Antonio 'Bigfoot' Silva for a shot at UFC Heavyweight Champion Cain Velasquez.