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Over the last few weeks, Ferguson, the no.2 ranked lightweight on the planet, has repeatedly stated his belief that Ireland's first UFC belt holder should relinquish the 155lb crown.

Most recently, the Ultimate Fighter season 13 winner said: "If he’s all about business and is being a punk, he needs to vacate that belt.

"You want to box? I’ll box you. That dude would get lit up on his feet."

Ferguson's public call out of McGregor stems from the Irishman's pursuit of a boxing match with Floyd Mayweather Jr, which seems to be edging closer and closer to coming to fruition.

'El Cucuy' touched on the matter during an appearance on UFC Tonight and made a goof case for 'The Notorious' relinquishing his second UFC title.

"If Conor wants to leave the belt and he wants to pursue some sort of victory in the boxing world, which I don't think he is," he said.

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"The dude has got a puncher's chance. But s**t, vacate the belt right now.

"Drop it, leave it where it's at and we'll fight for the title at International Fight Week, straight up."