According to David Meltzer, Chris Leben has tested positive for steroids. Leben was defeated by Michael Bisping, and now has been defeated by a mandatory drug test. Leben tested positive for a drug identified as Stanzaolol. Although no formal group oversees drug testing within the UFC, the tests were administered by the UFC.

Not only will Leben be fined one third of his pay from UFC 89, he also finds himself with a nine month suspension. UFC President Dana White told Meltzer, "I am obviously disappointed with Chris, who has made great strides getting his life back on track. To his credit, he has taken responsibility for his actions and is accepting the punishment that has been handed down. But as always, the UFC puts the safety of its athletes first and foremost, and we won’t tolerate anyone using performance enhancing drugs in our organization."