Kyle Walker confronted former colleague Nicolas Jover near the tunnel after Manchester City's defeat following the Arsenal coach's behaviour when they met last season.
City defender Walker was at the forefront of Blues visibly annoyed by the sight of Jover at the side of the pitch waiting for them after Arsenal's 1-0 win.
Erling Haaland was among the players seen backing up Walker before the England international was led away down the tunnel. The incident was a fiery outburst at the end of a timid affair on the pitch and provoked lengthy discussion in the post-match broadcast coverage that included Pep Guardiola's admission in his press conference that he knew what had happened but would not share it.
It is understood that while there were no problems with Jover when he worked at the club or with his decision to follow Mikel Arteta to North London, there was disappointment among City players last season when Jover refused to shake their hands after their two league victories over Arsenal. ALSO READ: Trophies, form and what comes next - rating Man City's season so far ALSO READ: Four piping hot takes from Arsenal win that Man City can ignore When a few of them saw the coach stood ready to greet them on Sunday after Arsenal broke their losing streak, Walker as captain felt the need to pull him up for his apparent hypocrisy.