Paulo Costa was reportedly bothered by comments made by Azamat Murzakanov about a 'secret juice.' Murzakanov stated that people will soon learn what the secret is and what fighters from Russia have. The remarks appear to be competitive banter ahead of their scheduled fight. Costa's reaction suggests he interpreted the comments as provocative or potentially insulting. The exact nature of Murzakanov's 'secret' reference remains unclear from the limited details provided.
