Emmanuel Frimpong has launched into a stinging attack on former Arsenal team-mate Samir Nasri.
The midfielder claims the feud dates back to the Gunners' 2-0 defeat against Liverpool in the 2011-12 season.
Ghanaian playmaker Frimpong - 19 at the time - was sent off after 70 minutes with the score at 0-0.
He told the Sunday Telegraph: "When the game ended, we were in the dressing room and I expected Wenger to be really angry.
"He was actually very calm, but for some reason Nasri came in and he was like 'we lost the game because of you'.
"I was a young guy, didn't really know what I was doing, and was devastated. I felt like I'd let everybody down and he was really blaming me, so I really didn't like him.
"He always had a go at me if I gave the ball away in training and even said to me once 'I could buy you if I want'.
"To be honest, he probably could have done at the time, but still."
Nasri quit Arsenal for Manchester City four days later - taking aim at Gunners fans following his switch.
When Arsenal met the Citizens in the League Cup later that season Frimpong grabbed his former team-mate by the throat after several big challenges.
And the 26-year-old - now at Ermis Aradippou in Cyprus - added: "People never really understand why that [fight] happened but I don't like the guy
"The reason I don't like him is because he's an idiot. Plain and simple. I would never, ever have respect for him."