Conor McGregor, a former UFC champion in two weight classes, reacted to the organization's flyweight champion Alex Pereira's victory over Khalil Rountree.
"Heavyweight. Let him go up to heavyweight! Come on. Heavyweight!", - shouted in the video McGregor, which he posted on his social networks.
Recall, Alex Pereira beat Khalil Rountree by TKO in the fourth round.