Thiago Silva's win over Staki Nedkov at UFC: Macao (aka Franklin vs. Le) may be overturned following a failed post-fight drug test by Silva, who tested positive for marijuana metabolites. It is Silva's second offense in three fights and will net him a six-month suspension. Silva's UFC 125 win over Brandon Vera was overturned after he attempted to submit a false urine sample during a post-fight screening.