"Spencer is the kind of fighter who has fought plenty of fights with injuries and Marcus Aurelio is not the kind of fighter you want to fight at 80 percent," said the native North Carolinian's manager, Monte Cox. "He was willing to fight but we decided it just was not a smart decision."
The 31-year-old Fisher (20-4-0) was looking to rebound from a loss to Frank Edgar (Pictures) at UFC 78.
Aurelio (15-5-0) had hoped to continue the momentum he had built in his dominant stoppage win over Luke Caudillo at UFC 78 against Fisher.
He will now likely face Jim Miller, whose only loss came at the hands of Edgar. Miller (10-1-0) is riding a five-fight winning streak into his UFC debut.Click Here, You might learn something