Paulo Costa responds to Bogdan Guskov's callout

Paulo Costa has responded to a callout from Bogdan Guskov. The post does not provide details on what Costa said or whether he accepted or declined the challenge. The original post is very brief and lacks substantive information beyond confirming that Costa acknowledged Guskov's challenge. This appears to be a developing story with limited details currently available. Further information may be needed to understand Costa's stance on the potential matchup.