Anthony Pettis will finally make his Octagon debut but, as expected, it will not come against the UFC Lightweight Champion. According to Dana White, the last man to hold WEC‘s 155-pound title will in fact take on Clay Guida rather than sitting on the sidelines to wait for his promised unification fight. The bout was rumored weeks ago following the UFC President’s announcement of Gray Maynard receiving an immediate rematch against Frankie Edgar after their UFC 125 title-fight ended in a draw.

White confirmed Pettis vs. Guida during Thursday’s Q&A session preceding the UFC Fight for the Troops 2 weigh-ins. While no venue was given, it appears that Pettis and Guida will serve as The Ultimate Fighter 13 Finale main event, scheduled for June 4 at the Pearl in Las Vegas, Nevada.

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Coming off a dramatic decision victory over Ben Henderson in the final fight in WEC’s history, Pettis will enter the ring with a lot of momentum behind him thanks to a highlight reel kick earning him mainstream recognition courtesy of a home on ESPN’s “Top 10” plays of the week/year. 13-1 in his overall career, Pettis has won his last four fights and will look to keep things going with a victory over the ultra-popular Guida. Though the fight will mark Pettis’ UFC debut it is actually his seventh appearance under the Zuffa banner.

Winner of three straight, Guida will look to remain off of Pettis’ highlight reel and slow the promising lightweight’s rise to glory. Coming off a dominating submission victory over former PRIDE 155-pound champ Takanori Gomi, Guida will try to make it back-to-back wins over final champions in now defunct organizations. Guida is no stranger to headlining Ultimate Finale events having already headlined season-ending shows for TUF 6 and TUF 9 in his career.

While nothing is official, it’s widely speculated that the winner of this fight will challenge the winner of Edgar vs. Maynard after the two top lightweights meet for a third time at UFC 130 and settle their championship score.