Machine Gun Kelly wasted no time in mocking Conor McGregor after his highly anticipated UFC return ended in disaster at UFC 329 on July 11.

Conor McGregor will undergo surgery following his first-round loss to Max Holloway at UFC 329 on Saturday in Las Vegas, and he plans to fight again once he has recovered.

After touching gloves with his opponent Max Holloway and backing into there corners, the fight started with McGregor attempting a flying kick and clearly came down wrong on his leg, which from that po...