Date: Saturday, February 2, 2008, at 10 p.m. ET on pay-per-view (PPV)
Location: The Mandalay Bay Events Center in Las Vegas, Nevada

“On the night before the biggest football game of the year, UFC® takes center stage with an immense night of hard-hitting heavyweight fight action. At UFC 81, former UFC® heavyweight champion Frank Mir will put wrestling superstar Brock Lesnar to the ultimate test, as Lesnar makes his move from the squared circle into the Octagon™ to prove that he is for real. Then, the new UFC heavyweight king will be decided as Tim “The Maine-iac” Sylvia faces Antonio Rodrigo “Minotauro” Nogueira for the Interim UFC Heavyweight Title.”

Main event:

Tim Sylvia (24-3) vs. Antonio Rodrigo Nogueira (30-4-1) for the interim UFC Heavyweight Championship.

Main card (televised):

Frank Mir (10-3) vs. Brock Lesnar (1-0)
Alan Belcher (11-3) vs. Ricardo Almeida (8-2)
Nathan Marquardt (25-7-2) vs. Jeremy Horn (79-16-5)

Undercard (may not be broadcasted):

Tyson Griffin (10-1) vs. Gleison Tibau (15-4)
David Heath (7-2) vs. Tim Boetsch (14-2)
Terry Martin (16-3) vs. Marvin Eastman (14-7-1)
Keita Nakamura (14-2-2) vs. Rob Emerson (6-6)

*All fights officially confirmed by UFC.com.

For more coverage of UFC 81 click here.