Paulie Malignaggi has aired his long list of grievances with Conor McGregor and his team for the way he was treated during his brief stint in camp to help the UFC lightweight champion prepare for Floyd Mayweather on Aug. 26.

Malignaggi called McGregor “one of the biggest dirtbags I’ve ever met,” and didn’t have much nicer things to say about the people around him. The former two-weight boxing champion abruptly left camp this past week when some unflattering sparring photos surfaced online that caused him to go over his tipping point.

McGregor (21-3 MMA, 9-1 UFC), who meets Mayweather (49-0 boxing) at T-Mobile Arena in Las Vegas later this month, has yet to publicly address the issue. But some of his teammates are beginning to spill the beans on their perspective. In particular, Tiernan Bradley, who is another one of McGregor’s sparring partners, shared some insight on a blog post for The Irish News.

On the Thursday, we were getting changed after training at the UFC performance institute and that’s when Paulie saw the photo for the first time. He was clearly pissed off, showing us his phone, saying ‘what the (expletive)?’ or whatever. It was weird though because after that Conor came into the changing room but Paulie didn’t mention it, even though they did speak. We were in the car home from training to get food and Paulie was like ‘drop me back to the house.’ You could see he was hanging his head, thinking about things. He was in a bad mood. We left him to the house and when we came back he was gone – we were only away about 45 minutes. He must’ve been straight in, suitcase packed, out the door. When you join a Conor McGregor camp, you know pictures are going to be released every day. Sometimes they might not be the most flattering.

Although Malignaggi said he was OK with some of the early photos from his sparring with McGregor, such as the one in which McGregor is holding his hands behind his back, he believes the image of him downed on the canvas was a step too far.

Malignaggi insists the image was released after a “push down,” and not a knockdown. He’s challenged the McGregor camp to publish unedited sparring footage to clear up any controversy once and for all, but request has yet to be fulfilled.

Bradley said it was in fact a knockdown that occurred, and he believes Malignaggi’s inability to take his lumps was the driving force behind his departure. Malignaggi was easily the most credentialed figure from the boxing world that McGregor has worked with in preparation for his upcoming fight, but it doesn’t appear anyone in the McGregor camp misses him.

Obviously he saw that picture and his pride was dented. I can understand that, but at the same time he was on TV doing interviews the week before, talking about Conor’s power being overblown and all this stuff. He was talking to Mayweather’s guys, talking to pro boxers and doing interviews – what did he think was going to happen? Did he expect to just come in here and talk (expletive)? … Anyway, that was last week, now we’re into a new phase three weeks out from the Mayweather fight. The attitude of Conor, the coaches and rest of the team to Paulie walking out has been straightforward – (expletive) happens, life moves on. This camp is not about Paulie. When we’re in the gym, we’re concentrating on Conor, getting him ready. I did some school sparring with him on the Thursday, the day Paulie left and it was as if nothing had happened. This is not the Big Brother house. It’s a training camp, and that’s all anybody left here cares about.

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The Blue Corner is MMAjunkie‘s official blog and is edited by Mike Bohn.