KAMARU USMAN stated that Conor McGregor's hustle is not the same and has 'demons to fight'.
He was the UFC's first ever two-weight champion, but he is currently without a win for two years. He has lost three of his last four fights.
Kamaru Usmam stated that Conor McGregor is fighting 'demons'
.
McGregor promised his fans complete abstention from Proper 12 whiskey, stout beer and after posting rambling Instagram posts about his pub.
UFC champion Usman is concerned that the sport's highest paid fighter will no longer be motivated by the same passion that brought him to gold.
On Club Shay Shay, he said: "The hustle doesn't exist if you sleep on silk sheets."
"So, with him, I don't understand why he's not as successful. Maybe he has many things going on.
"He has his demons, and he is fighting them. But I'm not going to kick him while he's down.
"That's the thing about this sport: you have to be truthful with yourself.
Free Bets: Get more than PS2,000 in NEW CUSTOMER DEALS"You must understand your weaknesses and make sure you're improving them.
"That's being able mix it all together."
Recent back-and-forth between the pair has led Usman to publicly challenge Irishman 2020.
Instead, he defended his belt against Jorge Masvidal (37), and accused McGregor (33) of giving him the silent treatment.
Usman, 34 years old, said: "I wouldn't fight Khabib. Khabib is my brother. I have no interest in that.
"Conor, absolutely. "Conor, absolutely. He was tweeting a lot before I fought Masvidal.
"I said, "Here's your chance. You can call the UFC right now to challenge for the belt.
"Then, he became quiet. Then, he began calling out Anderson Silva, retired fighters and other such things the following week.
"So would Conor fight me?" It's there."
