MMAJunkie.com learned of the match up from sources close to the negotiations earlier today.
Diaz, the winner of season five of “The Ultimate Fighter”, has been on a roll since making the leap up to welterweight after a rather unimpressive stint at lightweight. In his past two outings, Diaz has earned stoppage victories, including a technical knockout over Rory Markham and a submission over Marcus Davis.
Kim, like Diaz, has also been dominant in his past two outings, taking home back-to-back unanimous decisions over T.J. Grant and “Ultimate Fighter” winner Amir Sadollah. Kim brings with him to the Octagon an undefeated record of 13-0-1.
UFC 125 is set for New Year’s Day at the MGM Grand Garden Arena in Las Vegas, Nevada. The card is expected to be headlined by a lightweight title fight between champion Frankie Edgar and top contender Gray Maynard. Former heavyweight top contender Shane Carwin is also rumored to be on the card.