A rumored lightweight tilt between Kenny Florian and Clay Guida will take place on Dec. 12 at UFC 107.

Reports in late August tabbed the matchup for UFC 106 on Nov. 21 in Las Vegas, but MMAWeekly.com sources say it's been rescheduled for the following pay-per-view card. Though bout agreements have not been signed, both fighters have agreed to the contest and are expected to finalize the deal soon.

An update from MMA Live's Twitter account, which keeps close ties with show co-host Florian, also confirmed the change Wednesday afternoon.

The change bolsters the lineup for UFC 107, expected for the FedEx Forum in Memphis, after the card's main event, Quinton Jackson vs. Rashad Evans, was stricken from the event when Jackson's obligation to the upcoming movie "The A-Team" created a scheduling snafu. Last week, UFC president Dana White confirmed a lightweight title fight between champion B.J. Penn and Diego Sanchez as the southern card's other main draw.

Florian (15-4) fell short in his bid to wrest the title from Penn at UFC 101 last month, losing by rear naked choke in the fourth round. He had not lost since a first shot at the belt against Sean Sherk in October 2006, amassing six straight victories on his road back to contention. An alum of the original "The Ultimate Fighter," where he fought as a middleweight, Florian fought as a welterweight two times before making his original run for the revamped title.

Guida (25-10) saw his three-fight win streak broken against contender Sanchez, fighting a brutal war of attrition with the original TUF alum in a June appearance at the Season 9 finale of the show. Long considered one of the toughest competitors in the division, Guida has gone 5-4 in the Octagon since making his debut at UFC 64, the same card Florian got his title shot.

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