Paulo Costa was bothered by Azamat Murzakanov's recent remarks about a 'secret juice.' Murzakanov stated that very soon people will find out what the secret is and what fighters from Russia possess. The cryptic comments appear to have gotten under Costa's skin ahead of their scheduled matchup. The exact nature of Murzakanov's 'secret' reference and Costa's specific response are not fully detailed in the source material. This exchange adds another layer to the pre-fight buildup between the two middleweights.
