Paulo Costa responds to callout from Bogdan Guskov

Brazilian middleweight Paulo Costa has responded to a challenge issued by Bogdan Guskov on social media. The post indicates that Guskov called out Costa, and the Brazilian has now acknowledged the callout with a reply. Details about the nature of Costa's response or whether the UFC is interested in booking this matchup are limited in the original post. Both fighters compete in the middleweight division, making this a potential bout that could be arranged if both sides are interested.