Floyd Mayweather's boxing match with Conor McGregor is being billed as the biggest fight in combat sports history but few are giving the UFC star much of a chance against the undefeated boxer.
The pair will throw down in Las Vegas on August 26 and critics have been quick to label the bout nothing more than a 'money grab' with McGregor making his professional in-ring debut against one of the greatest in the history of the sport.
But whilst the majority of experts are viewing the showdown as a forgone conclusion, there are some who are giving the Irishman a chance.
Floyd Mayweather (left) and Conor McGregor meet at T-Mobile Arena on August 26
One of the men best placed to give an opinion on McGregor's chances is none other than one who will be in the commentary booth on the night itself.
Former two-weight world champion Pauli Malignaggi is one of the most knowledgeable figures in the game and has been recruited as a sparring partner by McGregor for this contest.
'Conor is working on a specific game-plan and Conor also obviously has a toughness from mixed martial arts,' Malignaggi told Sky Sports after what was reportedly a fiery session with the the UFC star.
'He's not going in there to play patty cake; he's going in there with any other fighter's mentality. Conor is the kind of guy who is going to come with a different style.
Conor McGregor holds his hands behind his back in a sparring session with Pauli Malignaggi
'I can't say based on a sparring session, 'Oh, I'm going to pick this guy to win the fight,'' Malignaggi said. 'But I will say this: He's serious about what he wants to do.
'He has an awkwardness to where he can land some shots, and I wouldn't say his power is what the reputation holds it for. I wouldn't say it's that strong, but his power is enough to where you definitely should respect it.'
'You probably favour Floyd Mayweather in the fight. But there's intangibles that you think that maybe Conor has a chance.'
Longtime boxing personality Max Kellerman is not impressed, however.
'I'm a big McGregor fan and if he had been boxing this whole time, maybe we'd be having a different story,' Kellerman told ESPN.
'Let me tell you what's going to happen, Conor McGregor will not land a single punch on Floyd Mayweather. Not one punch.'
Longtime boxing personality Max Kellerman (centre) is giving McGregor no chance
Andre Berto, Mayweather's last opponent and 'good friend' of McGregor, believes there are certain things the Notorious can do to improve his chances.
'He understands how he wants to make Floyd Mayweather uncomfortable,' said Berto to Fighhype in talking about McGregor.
'Me seeing it and talking to McGregor, that's the plan. He's a southpaw. He does a lot of awkward movements, and I really believe he thinks it's going to make a big difference in the fight.
'He believes he's going to bring a little bit more, something different from what Floyd's used to. Make things awkward, and jump in from different angles,'
'All of us tried to catch him. We couldn't catch him. We'll see if McGregor can make it happen,' Berto added.
'But it's the boxing game and anything can happen. If Conor can land a crazy shot, and if he does that, he's the president of the world! Nobody is going to tell him shit. Nothing.'
Andre Berto (left) says the Notorious is capable of causing Mayweather (right) some problems
Chris Eubank Snr
British boxing legend Chris Eubank, whose son has joined Mayweather's training camp, says there is an X factor that people are looking past.
'Everybody is forgetting that he (McGregor) is an Irishman. The Irish... they are a special people, they are amazing.
'I'm not talking about Conor McGregor, I'm not talking about an MMA fighter, I'm talking about an Irishman.
'It is likely that Mayweather Jnr has taken his eye off the target. He is fighting an Irishman, and that is enough.'
Chris Eubank Snr (left) believes McGregor's Irish spirit will be a key factor in this bout
Heavyweight icon Mike Tyson, never one to hold back, is firm in his belief that McGregor is in for a rude awakening.
'McGregor is going to get killed boxing,' he said. 'I got mad because I thought they were going to use MMA rules against boxing because that's what it's all about.
'Can the boxer beat the MMA guy? McConor put his dumba*** in a position where he's gonna get knocked out because this guy's been doing this all his life since he was a baby. McConor can't kick and grab and stuff so he won't stand much of a chance.'
Heavyweight legend Mike Tyson thinks McGregor will get destroyed by Mayweather
Oscar De La Hoya
One of the most vocal critics of this fight, Golden Boy Promotions boss Oscar De La Hoya has dismissed it as nothing more than a circus.
'No. No chance,' the former 10-division world champion said when asked by TMZ if he believes McGregor can stun Mayweather in their boxing match.
'I wish he would, but he can't. If I couldn't get a chance in, come on. 'You think Conor McGregor, in my prime, is better than me?' De La Hoya added, rhetorically.
Admittedly the promoter, whose own fight, Canelo Alvarez vs Gennady Golovkin takes place a month later, has a vested interest to play down the cross-sport spectacle.
Oscar De La Hoya (left) claims McGregor has no chance against Mayweather (right)
Heavyweight great Evander Holyfield does not wholeheartedly agree with old rival Tyson.
'He would have to rough him up,' the 54-year-old said. 'He'd have to do something that get (Mayweather) frustrated and get into a battle. I think his only chance is getting into a battle.'
Billy Joe Saunders
British world champion Billy Joe Saunders echoed the sentiments of De La Hoya and the majority of the boxing world, giving McGregor no chance whatsoever.
'It's impossible for Conor McGregor to land a glove on Mayweather. This will never, ever, ever happen.
'The only way something like this would happen [would be] if it was a big fix, and Floyd let him [McGregor] beat him. And that is never going to happen – there is too much legacy. It is just never going to happen.'
'I'm confident enough to say that I'd be willing to let a surgeon cut my heart out, keep it alive and put a £1 bet on that Conor McGregor gets beat in five rounds.
'And if he