Chael Sonnen failed his post-fight drug test following  his loss to current UFC middleweight champ Anderson Silva in UFC 117. He was tested positive for an undisclosed performance enhancing drug after the event that was held in Oakland, California, the California State Athletic Commission last August 7 and has been confirmed to Sherdog.

If it carries on, Sonnen will eventually face up to a one year suspension that will affect his immediate rematch with Silva which had already been scheduled in either January or February.

“If it’s true, I feel really bad for him, I know he did it to himself but it is really sad, he put on such a great performance that night. It is just a shame it will be tarnished.” Silva’s Manager Ed Soares said via Sherdog.com

Sonnen made a stand to his trash talk and definitely provide the best challenge there is yet to the middleweight king as he took charge of the whole four and a half rounds in the UFC 117 with Silva, but in the end he was submitted in the final minutes of the bout.