Aiden McGeady once fought a naked Artur Boruc in the shower of the Celtic training ground dressing room.
The Ireland international and the Pole "hated each other" according to former teammate Barry Robson who had previously told a version of the story. They were teammates for five years before both left Parkhead in the summer of 2010.
Speaking on the Open Goal 'Keep the Ball on the Ground' Podcast, McGeady explained what happened between him and Boruc which led to blows.
"He was in the wrong that day," said McGeady.
"There were times when I was in the wrong, I've been cheeky to people and got a punch, but he was in the wrong that day.
"We were arguing about a free kick. Artur was like 'play on, play on' and I said 'mate shut up, it's a free kick'. When I said that, he's obviously flipped. I was standing and I've heard people saying 'woah woah!', so I turned around and big Artur was running at me.
"He went to throw a punch but I've moved out of the way of it and he did a forward roll after. I asked what he was playing at and he said 'I'll get you in there', and to be fair he did get me in there.
"I was sitting reading a paper, it was quite sly the way he did it because he was standing above me. He offered his hand and said he was sorry about earlier on.
"So I put my hand out, and he just went bang and cracked me. It was a good punch because I had an immediate black eye. I tried to get him back. I stood up, obviously raging, I'm not going to batter Artur Boruc, am I?
"He is an absolute streetwise, 6' 4" Polish bear, do you know what I mean? He could actually handle himself as well. I tried to get back at him, everyone is in the middle, and I'm cutting about with this black eye.
"Artur's like 'I told you, I told you' and then walked in the shower, and a few guys are about mixing it like, 'I wouldn't be taking that man'. So I thought 'you're right'. I just went in the shower after him, but he spotted me coming and got me again.
"I'm trying to wrestle him. I had my training kit on but he was naked. I was trying to get a dig in at him, but he was man handling me to the ground. He was ready to boot me but Gaz Caldwell and Louvey (Glenn Loovens) grabbed him and wrestled him away."
Picture credit: Sportsfile