Paulo Costa responds to Bogdan Guskov's callout

Brazilian fighter Paulo Costa has responded to a challenge from Bogdan Guskov. The brief post indicates that Costa acknowledged Guskov's callout, though specific details of his response are not provided in the original message. This exchange represents the latest development in potential matchmaking for both middleweights. The interaction took place via social media, which is standard practice for fighters generating interest in potential bouts. Further details about the nature of Costa's response or whether this will lead to an actual fight booking remain unclear from the post.