Paulo Costa responds to Bogdan Guskov's callout on social media

Paulo Costa has responded to a callout from Bogdan Guskov on social media. The Brazilian middleweight posted his reaction to Guskov's challenge, though the specific details of Costa's response are not provided in the original post. This interaction represents the latest development in potential matchmaking at middleweight. Guskov has been actively seeking high-profile opponents to advance his UFC career. The exchange suggests interest from both parties in a potential future matchup.