Sugar Ray Leonard Watches Conor McGregor CONCUSS Paulie Malignaggi.

UFC Champion Conor McGregor brought in former Boxing world champion Paulie Malignaggi for his training camp for Floyd Mayweather and beat the daylights out of him for 12 rounds. UFC President Dana White released some of the footage online and caused quite a stir. Boxing legend Sugar Ray Leonard gave his take on the footage. Check it out.