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

Paulo Costa has reacted to recent comments made by Azamat Murzakanov about a "secret juice." Murzakanov stated that very soon people will find out what the secret is and what fighters from Russia have that others don't. The post indicates that Costa was bothered or provoked by these remarks from his upcoming opponent. The "secret juice" comment appears to be either a reference to training methods, performance advantages, or possibly a veiled implication about performance-enhancing substances. The exact nature of Costa's response and how he reacted to being "touched" by these words was not detailed in the post.