Paulo Costa responds to Bogdan Guskov callout

Paulo Costa has responded to a challenge from middleweight Bogdan Guskov. The post is brief and does not provide details on Costa's specific response or whether he is interested in the fight. Guskov had recently called out Costa in previous media statements, and this marks Costa's acknowledgment of the callout. No timeline or venue for a potential bout was mentioned. Additional context on the nature of Costa's response is not available in the source material.