This has been Leben's second suspension after a failed drug test, and this is the second time the UFC had to issue this punishment. He also tested positive in 2008 for the banned steroid Stanozolol.
"I like Chris, and I want him to do well, but based on his actions, he's been suspended for one year," said UFC President Dana White. "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."
All other 19 fighters from UFC 138 passed their drug tests.
Check out WrestlingINC's sister MMA website, FightLine.com, for more on this breaking story by clicking here.
Like WrestlingInc.com on Facebook by clicking the "Like" button below:
Demetrious "Mighty Mouse" Johnson Sets Unbreakable Record On Way To Successful UFC 186 Title Defense
Quinton "Rampage" Jackson And Michael Bisping Turn Back The Clock In Their UFC 186 Co-Main Events
Will WWE Air JR's Mick Foley Opener?, Jerry Lawler's Macho Man Sketch, Enzo And Big Cass, Connor
Goldust Wants Stardust To Get A Title Shot, WWE Extreme Rules Buzz, Tough Enough Audition Videos
WWE Main Event Results (4/25): Lucha Dragons Vs. Ascension, Axel Vs. Fandango, Brie Vs. Alicia Fox
Triple H Talks Relationship With Vince McMahon, His Backstage Duties For WWE, More
WWE Superstars Results (4/25): Jack Swagger Vs. Bad News Barrett, Tag Team Champions In Action
Three More WWE NXT Wrestlers Cut
WWE Releases Two NXT Wrestlers
TNA Impact Wrestling Results: Kurt Angle Destroyed, Kong Vs. Terrell, Mickie James' Announcement
Goldberg Says He'll Wrestle Again, Comments On If It Will Be For WWE
CM Punk Note, Roman Reigns And Dean Ambrose At Comic-Con, WWE Weekend Notes, WWE Shop Sale