Here is BJ Penn fighting Takanori Gomi in Rumble on the Rock 4 which took place on 10/23/04 in Blaisdell Arena, Honolulu, Hawaii.
After the fight, BJ would go on to defeat Matt Hughes taking the UFC welterweight championship. Gomi would go on to become a Japanese MMA legend, winning 15 of his next 16 fights including the Pride lightweight championship.
Penn next will next fight Nick Diaz at UFC 137 which takes place in Las Vegas, Nevada.
Here is the full line-up for UFC 137:
Nick Diaz v. B.J. Penn
Cheick Kongo v. Matt Mitrione
Mirko "Cro Cop" Filipovic v. Roy Nelson
Hatsu Hioki v. George Roop
Jeff Curran v. Scott Jorgensen
SPIKE TV CARD
Donald Cerrone v. Dennis Siver
Tyson Griffin v. Bart Palaszewski
Eliot Marshall v. Brandon Vera
Danny Downes v. Ramsey Nijem
Chris Camozzi v. Francis Carmont
Dustin Jacoby v. Clifford Starks