Paulo Costa claims Jiri Prochazka lied about showing 'mercy' to Carlos Ulberg

Paulo Costa has publicly disputed Jiri Prochazka's recent comments about showing mercy during his fight with Carlos Ulberg. Costa accused Prochazka of lying about the nature of the fight and his intentions during the bout. The Brazilian middleweight contender expressed his skepticism through social media. This appears to be part of ongoing tensions or disagreements within the UFC light heavyweight division. The post does not provide specific details about what Prochazka originally claimed or Costa's full reasoning.