CONOR MCGREGOR is known for having one of the deadliest left hands in mixed martial arts history - but it recorded one of the lowest scores possible on a punch machine.

The Notorious was given the chance to show off his famous power on Hard Hitterz UK's Instagram punch bag.

Hard Hitterz UK set up shop in Dublin ahead of Bellator 299 and allowed several members of the public, as they have become famed for, to try to set the top score.

But one of McGregor's thudding left hands only managed to register a score of ONE - despite it landing flush on the bag.

McGregor, who had been sipping on what appeared to be a Proper 12-infused cocktail, saw the funny side.

And, as he's had a knack for doing down the years, he managed to turn the situation into a win for himself with his quick-wittedness.

He roared: "Number one, baby."

The recently released clip went viral and received a slew of comments, with one fight fan saying: "Numero Uno."

Another said: "With all that drama he ended up with 1."

And another said: "Machine trolled him."

One remarked: "Numba 1 baby."

Another chimed in: "I can't understand if the punch was so weak that he hit 1 or he broke the machine."

One fight fan said: "The machine is broken."

McGregor's low-scoring punch wasn't his only crack at setting the top score.

Earlier in the evening, he bagged a score of 860 with a powerful left hook.

McGregor, 35, is on course to make his long-awaited octagon return next year after finally submitting his paperwork to re-enter the USADA testing pool.

The former two-division UFC champion must be in the pool for at least six months before he's eligible to compete unless he's given an exemption.

Mystic Mac - who will be welcomed back to the cage by Michael Chandler - tweeted on Sunday: "I’m back in the pool.

"Will be doing my stint at high elevation before the bout."

McGregor hasn't set foot inside the octagon since breaking his left leg in his 2021 trilogy fight with former interim lightweight champion Dustin Poirier.