Midfielder Guthrie, 21, was dismissed in stoppage time during the Magpies' 2-1 Premier League home defeat to Hull on Saturday after taking a wild swing at Fagan, who was left with a fractured left tibia.

But the Football Association confirmed on Wednesday that it will take no further action on top of a mandatory three-match suspension for the red card.

A spokesman said: "Every sending off carries an automatic sanction under the current regulations.

"The FA doesn't have the power to extend automatic suspensions.

"The only circumstances in which we could take any further action would be to issue an additional charge against a player.

"This occurs only in exceptional cases, such as Ben Thatcher's challenge on Pedro Mendes in 2006."