Newcastle United manager John Carver has insisted authorities take action against the Crystal Palace fan who threw a coin at Fabricio Coloccini.
The incident occurred when Newcastle players celebrated Papiss Cisse's opener in the 1-1 draw at Selhurst Park on Wednesday 11 February, in front of Palace's Holmesdale End.
Club captain Coloccini was struck by a coin while his teammates celebrated, prompting a furious response from his manager that could see Palace face action from the FA.
"I have seen it and it misses Colo's eye by an inch – another inch and it could blind him," Carver said. "You can't have that in this game. I hope the authorities deal with it and I'm sure they will because it will be on TV every other minute and rightly so. Let's find out who it was and sort it out.
"It just can't happen, can it? It has got to be taken out of the game. What is disappointing from Palace's point of view is that they have an unbelievable crowd here, an unbelievable atmosphere – it is a fanatical group of supporters in that corner. But it takes one idiot to throw a coin."
Palace manager Alan Pardew, who was facing his former employers for the first time since swapping Tyneside for south-east London, said: "I saw the referee come over to the linesman and hand him something.
"It would be a shame if that was an incident -- a random fan acting poorly and if that is the case, that is unusual for this club because we have a great record of behaviour. I am sure we will look into it."
Newcastle took the lead three minutes before half-time through Cisse's goal but Fraizer Campbell scored his first since October 2014 with 20 minutes remaining to earn a point for his side.