Originally Posted by MMAJunkie

Tim Credeur tests positive for Adderall, bout with Cale Yarbrough scrapped


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Just minutes before Tim Credeur was set to face fellow cast member Cale Yarbrough at the live finale for "The Ultimate Fighter: Team Rampage vs. Team Forrest," the bout was pulled from the fight card.

Although the move was met with initial confusion, the UFC confirmed midway through the event that Credeur had tested positive for Adderall, a psychostimulant traditionally prescribed to treat attention-deficit hyperactivity disorder and narcolepsy.

Traces of the banned substance were detected in a pre-fight drug test.

According to UFC.com, prior to Friday's weigh-ins, Credeur informed the Nevada State Athletic Commission that he had ceased using the medication five days before the weigh-ins.

When his test revealed the drug was still in Credeur's system, NSAC executive director Keith Kizer pulled the fighter from the event.

"Unfortunately, the drug was still in his system, and he's still positive, so he was unable to get cleared to fight," Kizer told UFC.com. "It should be out of his system in a few days, and hopefully they'll find another fight for him.

"(The drug) acts as a cardio-vascular restrictor, and that's the main reason it's banned because it can cause athletes to have a cardiac episode with the stress they're under when they're in an athletic competition. Secondly, it can have a performance-enhancing effect as well."

Credeur faces no disciplinary action because he alerted officials of the drug beforehand.

Credeur (9-2 MMA, 0-0 UFC), a Team Forrest fighter and one of this season's most experienced fighters, defeated Erik Charles, Matthew Riddle and Daniel Cramer to advance to the show's semifinals. However, he was knocked out of the competition by Jesse Taylor. When Taylor was kicked off the show due to a drunken rampage, Credeur then lost to C.B. Dollaway and missed his second opportunity to advance to the finals.