Paulo Costa responds to Bogdan Guskov's callout

Paulo Costa has responded to a callout from Bogdan Guskov. The Brazilian middleweight acknowledged the challenge from the Uzbekistan-based fighter. No specific details about the nature of Costa's response or whether he accepted a potential fight were provided in the post. The exchange appears to be part of ongoing social media interactions between fighters seeking high-profile matchups. Further developments regarding a potential bout between the two will likely emerge in coming days.