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Featured Image Credit: ESPN
The 31-year-old Irish former MMA superstar dropped his bombshell announcement on social media not long after UFC 250 on Saturday.
Speaking to ESPN, Rogan dismissed the idea that McGregor is serious about walking away from the sport again.
And the 52-year-old long-time UFC commentator and interviewer insisted that McGregor was only trying to grab fans' attention.
"I don't buy it for a second," Rogan said.
"I think Conor McGregor's trying to get you to talk about him. What better way to get people to talk about him than when there's spectacular fights.
"What he did was just sort of hijack the situation by saying he's retiring."
McGregor made his long-awaited MMA return back in January with a clinical display against Donald Cerrone at UFC 246.
And the former double champ has reiterated his desire to avenge his 2018 defeat to arch-rival Khabib Nurmagomedov.
McGregor revealed in a new interview that he had become "bored" of MMA and felt there was "just no buzz for me."
The future UFC Hall of Famer told ESPN: "I'm a bit bored of the game. I'm here watching the fight. I watched the last show -- the Woodley-Burns show -- I watched the show tonight.
"I'm just not excited about the game, Ariel. I don't know if it's no crowd. I don't know what it is. There's just no buzz for me."
Khabib's manager has since hit out at "b***h a*s" McGregor and called him out for not taking up a fight with UFC star Tony Ferguson.
Boxing legend Floyd Mayweather also reacted to the Irishman's retirement and teased the idea of a blockbuster rematch with McGregor.
UFC president Dana White has offered his two cents on McGregor's decision as he launched an astonishing rant over problems he has experienced with fighters in recent weeks.