Conor McGregor lost to Floyd Mayweather two years ago on his professional boxing debut and just after the anniversary of the defeat, Floyd’s father took a pot shot at the Irishman.
"I’d beat the s*** out of Conor," he told TMZ. "I would beat the s*** out of Conor right now. I’m double his age and I’d whoop is ass."
McGregor has fought just once since his defeat by Mayweather.
The Irishman lost by fourth-round submission to Khabib Nurmagomedov last October.
McGregor wants a rematch with Nurmagomedov and plans to return to the Octagon later this year.