Arum: UFC impeding Mayweather fight with ask for half McGregor's purse

If Floyd Mayweather never fights Conor McGregor, famed boxing promoter Bob Arum knows who to blame.

In conversation with FightHubTV, the Top Rank boss claimed McGregor's employers at the UFC are making unreasonable demands that could permanently put the fight on ice.

"I think the only impediment there is the UFC, because UFC doesn't treat fighters the same way that boxing promoters do," Arum said, according to Tim Burke of Bloody Elbow. "In other words, UFC fighters get so much less than boxers do. They proposed a deal to Conor that on his share of the purse, they take 50 percent. Now, give me a break.

"If the fight doesn't happen ... not that I think it's going to be a great fight, because I think Conor fighting Mayweather is not really a fight, if it's boxing. Conor (is a) great MMA fighter, but hasn't shown anything in boxing. And Mayweather's one of the great fighters. But if that fight doesn't happen, the blame will only be on the UFC."

It's no secret Mayweather and McGregor have had vastly different opinions on how each side should be compensated, and if there's any truth to Arum's numbers, it's understandable why the negotiations have hit another snag.