The UFC is pulling out all promotional stops for the first all heavyweight main card. “UFC 146: Dos Santos vs. Mir” was released last night on Fuel TV, to compliment the already on-going three-part series “Primetime: Dos Santos vs. Mir.” Watch the 22 minutes of action above as we hear the back story of not only headliners Frank Mir and Junior dos Santos, but also former champ, Cain Velasquez vs. Antonio ‘Bigfoot’ Silva. Also featured is Roy Nelson vs. Dave Herman and .

The event will take place May 26 from the MGM Grand Garden Arena in Las Vegas, NV. The event will be available to watch via pay-per-view, or by play-by-play here.