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The Irishman suffered a horrific leg break against Dustin Poirier at UFC 264 last weekend and it was his sixth career loss.
Many have questioned if McGregor is still a threat at the top level and according to Ali Abdelaziz.
He told MMA Junkie: "In reality, f**k him.
"I don't really care about him. He's easy money. I hope he's healthy. He can come back (and) fight (Justin) Gaethje, Islam (Makhachev), or Beneil (Dariush).
"He's an easy payday for everybody. He's become, like I said, he's a prostitute. Guys use him right now for hype. That's it. Because he's easy money. He can not beat anybody in the top 10 or the top 15. He cannot compete with these guys anymore. He cannot."
McGregor caused controversy with a scathing post-fight interview with Joe Rogan.
On the ground thanks to his injury, the 'Notorious; ripped into Poirier and his wife, Jolie, before appearing to say he'd kill them in their sleep.
Abdelaziz, who managed McGregor's fierce rival Khabib Nurmagomedov, believes the 32-year-old deserves to be hit with a massive fine.
"The guy acts like this (invincible) gangster, but he's really not. He's a guy," Abdelaziz added. "God tests you. He gives you this kind of power, right? And he sees what you're going to do with it. (McGregor) did everything wrong with his power.
"Look at guys like Khabib (Nurmagomedov), Dustin Poirier, Daniel Cormier. They use their power (for) good. They help other people. All this guy does is hurt people.
"Listen, this guy has a family. By doing this, he's hurting his own family. Who wants to be the son of this kid? Nobody wants to be the son of someone like him."
He also claims McGregor is 'surrounded by yes men' who don't help him improve his game.
McGregor has won one fight since 2016, a 40-second demolition of Donald Cerrone in January 2020.
He's keen to face Poirier once fully recovered and released a statement following surgery.
"... Just out of the surgery room, everything went to plan, everything went perfect and I'm feeling tremendous. We've got six weeks on a crutch now and then we begin to build back," McGregor explained on Instagram.
"A clean break of the tibia and it was not to be. Dustin, you can celebrate that illegitimate win all you want but you've done nothing in there. That second round would have shown all."