Paulo Costa reacts to Azamat Murzakanov's 'secret juice' comments ahead of UFC 327

Paulo Costa appears bothered by recent comments made by light heavyweight opponent Azamat Murzakanov. Murzakanov stated that "soon, very soon we will show what the secret is" and that people will learn "what Russian fighters have." The cryptic reference to a "secret juice" has drawn Costa's attention ahead of their upcoming UFC 327 bout. The phrase appears to be a play on past controversies surrounding performance enhancement accusations. Murzakanov's comments seem designed to get under Costa's skin before their scheduled encounter. The Brazilian fighter's reaction suggests the psychological warfare has begun in earnest.