A UFC lightweight trilogy match between Maynard and Diaz is official for Saturday, as both fighters came in at 156 pounds inside The Mandalay Bay Events Center. The contest will headline The Ultimate Fighter Finale in Las Vegas.
The two fought in 2007 as contestants on the fifth season of TUF, with Diaz (16-9) advancing via second-round submission. That win is not reflected on either fighter's professional record however, as TUF bouts are considered amateur fights.
Maynard (11-2-1) earned his revenge in January 2010, defeating Diaz via split decision. The two will look to settle that 1-1 tie on Saturday.
"Obviously, it's huge," said Maynard, who is ranked the No. 8 lightweight in the world by ESPN.com. "You've got to be the guy that comes out on top.
"Two out of three -- it's better than one out of three. That's easy math, right? I want to get back in the title hunt."
Maynard is coming off a first-round knockout loss to T.J. Grant at UFC 160 in May. Diaz, who fought for the title late last year, will attempt to end a two-fight losing streak.