The injury bug has struck UFC 143 once again.
Announced Tuesday, "The Ultimate Fighter 7" winner Amir Sadollah (5-3) has been scratched from a scheduled bout against Jorge Lopez (11-2) for the February 4th event. Fellow TUF 7 alum Matt Riddle (5-3) has been tapped as a replacement opponent. UFC officials confirmed the switch via Twitter.
Riddle was previously slated to meet Luis Ramos on the undercard of UFC 141, however a fight night illness led to the bout's cancellation. Prior to the setback, the 25-year-old fell short in two straight decisions to Sean Pierson and Lance Benoist.
Lopez, meanwhile, heads into his second UFC contest after dropping a unanimous decision to Justin Edwards in his September debut. The loss snapped a ten-fight win streak that stretched back to 2008.
UFC 143 fight card:
Interim Welterweight Championship: Nick Diaz vs. Carlos Condit
Heavyweight: Roy Nelson vs. Fabricio Werdum
Bantamweight: Scott Jorgensen vs. Renan Barao
Welterweight: Josh Koscheck vs. Mike Pierce
Featherweight: Dustin Poirier vs. TBA
Bantamweight: Alex Caceres vs. Edwin Figueroa
Welterweight: Jorge Lopez vs. Matt Riddle
Middleweight: Ed Herman vs. Clifford Starks
Welterweight: Matt Brown vs. Chris Cope
Welterweight: Justin Edwards vs. Mike Stumpf
Middleweight: Rafael Natal vs. Michael Kuiper