Paulo Costa responds to Azamat Murzakanov's comments about 'secret juice'

Paulo Costa has been bothered by recent comments from his upcoming opponent Azamat Murzakanov regarding a "secret juice." Murzakanov made cryptic statements saying "very soon we will show what the secret is" and that people will soon learn "what people from Russia have." The remarks appear to have gotten under Costa's skin ahead of their scheduled bout. Costa, who has previously faced accusations about performance-enhancing substances in his career, is now dealing with these veiled references from the Russian fighter heading into their matchup.