Paulo Costa responds to Bogdan Guskov's callout

Brazilian middleweight Paulo Costa has publicly responded to a callout from Bogdan Guskov. The post does not specify the nature of Costa's response or provide details on whether a fight agreement is being pursued. Guskov has been actively campaigning for high-profile opponents in recent weeks. No timeline or event has been announced for a potential matchup. Further details on Costa's stance remain limited at this time.