Tottenham striker Robbie Keane is demanding greater commitment from Republic of Ireland players.
The Republic have had plenty of problems with mystery initially surrounding the failure of James McCarthy, Jon Walters and Marc Wilson to report for duty.
The Tottenham striker said: "I think that is obviously clear to see.
"It frustrates everybody but what can you do about it? I don't know the answer.
"I would never do it but if people don't want to play for Ireland, don't declare yourself to play for Ireland. It's simple.
"I have never once pulled out of a squad for any reason apart being injured.
"I am a proud Irishman. As a kid growing up it was always a dream to play for my country.
"I still have that same hunger and enthusiasm that I had when I first had the opportunity. That will never change for me."
