One of the best UFC analysts in the fight game expects Conor McGregor to retire forever if he loses his comeback bout against Khabib Nurmagomedov

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Conor McGregor will never fight again if he loses to Khabib Nurmagomedov.

That is the opinion of UFC expert Robin Black, who says the stakes are incredibly high in a bout that has been billed as "the biggest fight in UFC history."

Black said the winner of UFC 229: Khabib vs. McGregor will achieve combat sport immortality, while the loser will be haunted by the result forever.

Conor McGregor will retire from the fight game forever if he loses his upcoming comeback bout against Khabib Nurmagomedov, according to one of the best UFC analysts in the business.

McGregor has not fought in UFC since his knockout victory over Eddie Alvarez in November 2016, but returns with a point to prove having lost his boxing debut against Floyd Mayweather, last year.See the rest of the story at Business InsiderNOW WATCH: This pit crew member got hit by a race car here's why he still loves his jobSee Also:3 top fighters expect Khabib Nurmagomedov to 'kill' Conor McGregor when they trade blows at UFC 229This is everything WWE wrestler Ronda Rousey eats for breakfast, lunch, and dinnerA Harvard professor just busted the myth that coconut oil is good for you, calling it 'pure poison'SEE ALSO: 3 top fighters expect Khabib Nurmagomedov to 'kill' Conor McGregor when they trade blows at UFC 229

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