Klidson Abreu’s unanimous decision victory over Renan Ferreira has been overturned by the Georgia Athletic and Entertainment Commission due to a failed drug test, multiple people with knowledge of the situation told MMA Fighting. The former UFC fighter confirmed the news to MMA Fighting, saying he suffered a bad cut one week before his bout with Ferreira on June 24. As a result, he said he went to the hospital and was prescribed a medication he believes could have led to the failed drug test. Medical paperwork Abreu provided to MMA Fighting, which he said he received after going to…