UFC officials announced that light heavyweight slugger Thiago Silva has tested positive for marijuana metabolites following his submission of the night victory over previously unbeaten Stanislav Nedkov on the UFC on Fuel TV 6 card that took place in China on November 10.
The win had been Silva’s first since he defeated Keith Jardine by first round knockout at UFC 102 way back in August of 2009. Silva had beaten Brandon Vera via unanimous decision at UFC 125 in January of 2011, but his post-fight drug test drew red flags and was found not to be consistent with human urine. Silva admitted to taking a banned substance, the fight was changed to a no contest and he was suspended for a year.
The Brazilian Jiu-Jitsu blackbelt made his return in April of this year and took on Alexander Gustafsson in the main event of the UFC’s first trip to Sweden. Silva lost the bout by unanimous decision and was then booked to face former UFC Light Heavyweight Champion Mauricio “Shogun” Rua at UFC 149. Unfortunately Silva suffered an injury and was forced to withdraw from the bout.
With no athletic commission to oversee the drug screenings the UFC was in charge of administering the post fight drug tests after the card in China. Silva has admitted to using the banned substance and has been suspended for six months, but he was not issued any fine. The win however has been stricken from his record and changed to a no contest. The UFC has also ordered Silva to enter a drug rehab program and pass a drug test before being cleared to fight again.