Matthew Riddle

TUF 7 winner Sadollah injured, out of fight

Amir Sadollah, winner of Season 7 of "The Ultimate Fighter," has suffered an injury and is out of his UFC 143 fight against Jorge Lopez.

The UFC announced the injury Tuesday, as well as Sadollah's replacement in the fight – fellow TUF 7 veteran Matthew Riddle. Riddle gets the new bout just days after he had to pull out of his UFC 141 fight hours before it was to take place.

Riddle (5-3, 5-3 UFC) has spent his entire professional MMA career in the UFC. He won his debut on the TUF 7 Finale card with a unanimous decision win over Dante Rivera, then followed it up with a pair of decision wins over Steve Bruno and Dan Cramer. After a TKO loss to Nick Osipczak at UFC 105, Riddle put together two more wins over Greg Soto and DaMarques Johnson to get to 5-1.

But Riddle has suffered back-to-back losses over Sean Pierson at UFC 124 and Lance Benoist at UFC Fight Night 25 – a bout that won Fight of the Night honors in New Orleans. Riddle was scheduled to meet Luis Ramos last week at UFC 141, but not long before the bout on the preliminary card, UFC officials announced Riddle became ill before the fight and was not allowed to compete.

Lopez (11-2, 0-1 UFC), a protege of Wanderlei Silva, made his UFC debut at UFC Fight Night 25 in September, but lost by unanimous decision to Justin Edwards. That setback snapped a 10-fight winning streak for the welterweight.

UFC 143 features a main event interim welterweight title fight between Carlos Condit and former Strikeforce welterweight champ Nick Diaz. Also on the card, welterweight contender Josh Koscheck faces Mike Pierce and Roy Nelson meets Strikeforce heavyweight crossover Fabricio Werdum.