Sunderland midfielder Dickson Etuhu had to be prevented from a second bust-up with Newcastle's Joey Barton on Sunday, it has been revealed.
The Mirror says fuming Etuhu was ready to confront Barton after the 1-1 draw, but was hustled away by teammates and boss Roy Keane.
The two players were in the same Manchester City youth team as teenagers and had a bitter rivalry.
David Tickle, who was in the same City youth team as Barton and Etuhu, said: "There were a few battles between them. They were fiercely competitive guys."