Newcastle midfielder Yohan Cabaye has apologised for his part in the incident which saw Everton's Tim Cahill dismissed at Goodison Park on Sunday.
Cahill was given his marching orders after the final whistle following the Toffees' 3-1 triumph, with the midfielder appearing to grab Cabaye by the neck.
The Frenchman has apologised for the "cross words" he exchanged with the Everton man after the game had ended.
He said: "I would like to apologise for the cross words I exchanged with Tim Cahill which resulted in his red card and my booking on the final whistle.
"It was unnecessary and, regrettably, the result of frustration and disappointment, all in the heat of the moment. It is out of character and for that I am sorry."
Qualification to the UEFA Champions League proved just beyond Newcastle's reach this season but Cabaye is already looking ahead to next term.
"We have had a fantastic season at Newcastle United and already I look forward to next season, the Premier League and the Europa League," he added.
"Finally, a huge thank you to our fans who have been magnificent all season."