Injured Manny Gamburyan out of UFC 135 fight with Diego Nunes

An injured shoulder has forced Manny Gamburyan (11-6 MMA, 2-2 UFC) out of next month's UFC 135 event, the fighter today announced via Twitter.

His opponent, fellow featherweight Diego Nunes (16-2 MMA, 1-1 UFC), now awaits a replacement.

UFC 135 takes place Sept. 24 at Denver's Pepsi Center.

A title fight between light-heavyweight champion Jon Jones and Quinton "Rampage" Jackson headlines the pay-per-view main card. Gamburyan vs. Nunes was slated for the preliminary card.

"I hurt my shoulder and MRI is not looking good," Gamburyan wrote. "I just wanna say sorry to I'll my friends and fans."

Gamburyan looked to end a two-fight skid. "The Ultimate Fighter 5" veteran fell via second-round TKO to then-WEC champ Jose Aldo this past September before returning to UFC octagon for the first time in more than two years. There, he dropped a majority decision to Tyson Griffin at UFC on Versus 4 back in June.

Nunes is coming off a unanimous-decision loss to Kenny Florian at UFC 131. The defeat snapped a three-fight win streak for Nunes, who wrapped his WEC stint with victories over Tyler Toner and Raphael Assuncao before downing Mike Brown at UFC 125.