Conor McGregor reacts to disastrous UFC return: 'My head gasket is gone'

All of the hype and pageantry of an impending Conor McGregor return to the UFC Octagon on Saturday night blew up in smoke within seconds.

McGregor stepped into the cage against Max Holloway at UFC 329. He came across the mat with a flying left roundhouse kick and landed awkwardly on his right knee. He tried another kick and slipped to the ground. He tried to power through it but nearly two minutes into the fight, he grabbed at his right leg again and referee Mike Beltran called the fight.