The UFC has confirmed the UFC 106 main event between heavyweight champion Brock Lesnar and unbeaten challenger Shane Carwin.
The fight will take place Nov. 21 at the Mandalay Bay in Las Vegas.
"Brock Lesnar has been tearing through everyone over the last year," UFC president Dana White said.
"But in Shane Carwin, he's not only fighting someone as big as he is, he's fighting someone who has ended all of his fights in less than three minutes. This is literally the biggest heavyweight title fight ever and may also be the most explosive."
The card will also features the return of Tito Ortiz. The Huntington Beach Bad Boy will meet 44-year-old Mark (The Hammer) Coleman.
