Paulo Costa responds to Bogdan Guskov's callout

Paulo Costa has responded to a callout from Bogdan Guskov. The brief post confirms that the Brazilian middleweight has acknowledged Guskov's challenge, though the specific nature of his response is not detailed. This represents a potential matchup in the UFC middleweight division. Additional context about whether Costa accepted or declined would require further information. The callout and response indicate ongoing matchmaking discussions in the division.