The Portuguese Football Federation (FPF) earlier said the player would not travel to Nicosia for Friday's match after he left the training camp without offering an explanation to the federation or to coach Paulo Bento.
"I feel in full physical and mental form, as I have shown for my club and country, but if I am made to feel unnecessary and am not told so, then the only way is out," Carvalho said in a statement carried by Lusa.
"Having earned 75 caps and been deeply dedicated in defending the national side's reputation, I have never before felt so disrespected and wounded in my dignity.
"Among my peers I am just another athlete, but like others I deserve consideration and respect," he said.
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