UFC Welterweight Colby Covington stated that Dustin Poirier had a 'quitter mentality after his defeat to Charles Oliveira for the world title.
After being submitted in Las Vegas' third round, the 32-year-old Diamond suffered heartbreak in his lightweight match against the Brazilian.
Charles Oliveira beat Dustin Poirier in their UFC lightweight title clash last weekend
Poirier entered the Octagon having won his three previous fights, including two victories over Conor McGregor. He had also defeated Khabib Nurmagomedov via submission in September 2019.
He was again heartbroken in his quest for the title of world champion, and he tried to hold back his tears as he spoke to the media after his loss to Oliveira.
He has not spoken out about his imminent retirement but he insists he will make the final decision on his future in the coming days.
His former American Top Team teammate Covington lambasted Poirier's performance and said that his wins against McGregor were not impressive.
Submission Radio's Covington said that he had the "quitter mentality of Dustin." He has always been like that.
"Never likes to work hard. It's like living off Conor McGregor. Why is it important to beat Conor McGregor these days?
He has a great history, and did great things in the past. He made a lot of money but doesn't have the same drive anymore.
"Baking a guy like this does not mean that you are going to be a world-beater or the greatest in the world. That's what I saw.
"I knew he was going gassy and would eventually give up. He did exactly that. The Khabib fight was the same.
He stops, he places his head on the mat, and then he lets his neck hang open to allow him to get his rear naked choked. It wasn't surprising.
Covington, who was twice beaten by Kamaru Uman for the UFC Welterweight title, asked his American compatriot, to weigh in to meet him.
Chaos said: "He might come up 170, he wants a fight in a real men's weight class. This is a personal fight.
These are two different types of fights. It's not about the rankings. This is about personal grudges, and being held responsible for your actions.
He talks big like he is a street fighter. But he is a good fighter. Dustin, stop putting on all that weight.
"Come up to the real men's weight class, welterweight and let's do it, man. Talk too much s ***."
