Rebound time.

Former featherweight number one contender Josh Grispi will square off against George Roop at The Ultimate Fighter (TUF) 13 Finale on June 4 in Las Vegas, Nevada.

Sources close to MMAMania.com confirmed the contest today.

Grispi is coming off a crushing loss to Dustin Poirier in which he surrendered his number one contendership to Jose Aldo's 145-pound title after a three round, 15 minute beating.

That was just the second loss of the 22-year old's career, snapping a 10 fight winning streak.

Can he prove he's no "Fluke" when he takes on Roop in June?

This is essentially a must-win fight for George Roop, who's 11-7-1 record doesn't exactly inspire confidence in his employment status with the world's largest fight promotion.

The Team Tompkins product has bounced around from lightweight to featherweight to bantamweight and right back up to 145-pounds. His debut in the UFC lasted all of a minute and a half, as he fell to the heavy hands of current division title challenger Mark Hominick.

Will a loss send Roop to the unemployment line? Or perhaps to yet another weight class?

Stay tuned.

The Ultimate Fighter (TUF) 13 Finale is currently scheduled to go down on June 4 at the Palms Casino Resort in Las Vegas, Nevada, and will feature Anthony Pettis putting his lightweight number one contender spot on the line when he throws hands against energetic caveman Clay Guida.

Stay tuned to MMAMania.com for any updates as they become available.