Arsenal skipper Cesc Fabregas has been charged with improper conduct following allegations he spat at Hull assistant boss Brian Horton at the Emirates Stadium on March 17. Hull boss Phil Brown has also been charged by the FA following his outburst at referee Mike Riley.
Gunners boss Arsene Wenger feels there is no case to answer.
"Fabregas has been charged for improper conduct on the night.
I always said we are always very open to co-operate with any investigation.
"I personally looked at the reports, at the video evidence and there is nothing in there against Cesc."
Should the charges be proven Fabregas could face a suspension.
However, that would only be for domestic matches and as such would not cover the forthcoming Champions League semi-final against Manchester United.
Wenger continued: "I don't know if we will appeal - I will see what we can do about that.
"At the start, I am not a great fan of appealing because I said we are very open to co-operate and now I don't think we should stop that.
"I am very positive that there was enough evidence in what I have seen that the case should have been dropped."
A statement from the FA read: "Cesc Fabregas and Phil Brown have both been charged with improper conduct.
"The charges relate to matters arising from the FA Cup match between Arsenal and Hull at the Emirates Stadium on 17 March.
"Fabregas faces two charges of improper conduct relating to his conduct on the pitch following the game.
"One charge concerns his behaviour in coming onto the pitch after the final whistle, the second charge relates to an alleged spitting incident.
"The charges are based on submissions from Hull City and video evidence.
"Brown is charged with improper conduct and/or bringing the game into disrepute in relation to media comments made after the game concerning referee Mike Riley.
"Fabregas and Brown have until 12 May to respond."
Fabregas refuted all of the allegations.
He said: "I was on the pitch at the end of the game celebrating with my team-mates, but I promise I did not do anything wrong."