Watch! McGregor slays the Giant

Ultimate Fighting Championship (UFC) Champion Conor Mcgregor is all set to face undefeated Floyd Mayweather in an epic multi-million dollars fight, but ahead of the epic battle, the Irish MMA fighter took on the 7ft giant Gregor Clegane.

The Mountain from Game of Thrones Gregor Clegane paid a visit to MMA champ who is currently preparing for his mega fight against boxing great [Mayweather].

Both starts showcase an entertaining battle in a mock fight.