Newcastle manager Alan Pardew has expressed his regret in the wake of the extraordinary flashpoint which overshadowed his team's 4-1 Barclays Premier League win at Hull.
The game's main talking point arrived in the 72nd minute when Hull midfielder David Meyler barged into Pardew as he looked to retrieve the ball for a throw-in.
The Newcastle manager, no stranger to touchline altercations, squared up to the former Sunderland midfielder before appearing to move his head in the direction of the Irishman.
Referee Kevin Friend certainly viewed it as a serious incident and sent Pardew to the stands, with the FA sure to take a close look at the altercation in the coming days.
Pardew told Sky Sports News afterwards: "It was a heat of the moment thing - I massively regret it."
"I didn't meant to do anything aggressive but I moved my head forward and that's enough."It's a shame because it took the gloss off a fantastic performance from us. That's really upsetting."
More top news
Super substitute Jill Scott marked her 101st international appearance with the winner as England squeezed past a stubborn Bosnia side
Conservative Party chairman Lord Feldman is being interviewed in an internal inquiry into bullying after the death of a young activist.
Former Davis Cup finalist John Lloyd led the tributes to Andy Murray, who ended Great Britain's 79-year wait for the famous trophy