Urijah Faber’s upcoming bantamweight fight against Takeya Mizugaki at WEC 50 has been canceled. Faber suffered a knee injury in training, and instead of trying to find a suitable replacement, the WEC has decided to pull Mizugaki off the card.

Faber told Heavy.com the injury was completely unrelated to the beating his left leg took from Jose Aldo at WEC 48.

“Somebody was going to take me down during training. They swept me and I heard a loud pop,” Faber told Heavy on Friday morning. “They said it would be six weeks before I could train again, but it may heal even faster.

“It’s completely unrelated to the Aldo fight,” Faber continued. “It really was a very specific thing that was done to my leg. The guy that hooked me was 170 pounds and it was just a very specific motion. I’d been training for over a month at full strength, so it definitely didn’t have anything to do with the Aldo fight.”

Faber’s manager says the injury will not require surgery and it could be healed in time for Urijah to fight at WEC 51 on Sept. 30.

Image via Sherdog