Arsenal chairman Peter Hill-Wood and Croatia manager Slaven Bilic have expressed their backing for Eduardo over his Uefa charge.
The striker is facing a two-game ban after Uefa deemed that he "deceived the referee" by allegedly diving against Celtic in the UEFA Champions League last week.
Premier League side Arsenal are considering their next move following Uefa's announcement of the charge, but have already expressed their "deep frustration".
The Gunners must decide on Thursday whether to appeal Uefa's decision of a two-game ban.
Hill-Wood has confirmed boss Arsene Wenger has the full support of the board after the Frenchman criticised Uefa's handling of the matter.
He said in The Sun: "I think Arsene is absolutely right to take the view he has. He has 100 per cent backing from the board and we are united on this issue."
Eduardo's national manager Bilic has also voiced his backing for Eduardo, who is set to lock horns with England in Croatia's World Cup qualifier next week.
Bilic said in the Telegraph: "We are talking about a player who is a role model of a sportsman. I simply cannot understand how he can be punished."