"Let me tell you something. If he keeps fighting and doing that in boxing, somebody’s gonna kill him," Mayweather's father has warned.
Floyd Mayweather Snr didn't pull his punches either in saying he wasn't impressed with McGregor's efforts in the ring, describing his boxing skills as "pathetic" and "crazy".
The 64-year-old said:"I ain’t ever seen anyone talk like the way he talked and then go out there and fight like that.
“I mean that was pathetic, the way he fought. All the illegal punches and stuff he did, hitting someone on the back of the head.
“Doing everything, I mean come on man. All that kind of stuff is crazy.”
Boxer Paulie Malignaggi has now stepped forward to say he'd like a shot at fighting McGregor. "F*** yeah, why not? That’s the easiest money I can make. Are you kidding me? He’s not very likable," he said.