Oops, he did it again.
Leben tested positive for Oxycodone and Oxymorphine, two prescription painkillers.
Here's what UFC President Dana White had to say about the personal demons that have plagued Leben throughout his mixed martial arts career:
"I like Chris and I want him to do well, but based on his actions, he's been suspended for one year. If he needs professional help, we are going to be there for him. We want to see him succeed not only in the Octagon, but in his personal life."
This is the second time Leben has failed a drug test, the first coming after his unanimous decision loss to Michael Bisping following UFC 89 back in Oct. 2008.
That event, perhaps coincidentally, was also held in Birmingham, England.
Included in the UFC report announcing the drug test failure is a statement from Leben himself, who takes responsibility for his actions and accepts the punishment handed down to him.
"I would like to make it known that I fully accept this suspension and apologize for embarrassing the UFC, my friends and family, and sport of mixed martial arts. I'm learning that I'm my own worst enemy sometimes. I can't succeed in the Octagon or in life behaving this way. I've got to make some real changes over the next year and I'm going to focus on getting my life and career back on track. Again, I'm sorry to the UFC and fans that've supported me since my days on The Ultimate Fighter."
Because there is no drug testing overseas due to a lack of sanctions from athletic commissions, the UFC typically takes the matter in its own hands, both in testing and any and all ensuing punishment.
This being his second offense, the powers that be felt an entire year away from the sport was in order.
In the days leading up to UFC 138, Leben had trouble cutting weight for the contest, reportedly dropping 21 pounds in just 24 hours in order to go ahead with the bout. He eventually lost via second round technical knockout following a doctor stoppage via cut.
The 19 other fighters who competed on the card and were tested all passed with flying colors, according to the UFC.