Ronaldo struggled for fitness throughout Portugal's campaign, and his form seemed to suffer as a result, but Quaresma believes that it is unfair to put any blame on the Real Madrid forward.
"We cannot just put pressure on Cristiano – he does not play alone. I think we Portuguese put too much pressure on just one player," the Porto winger told TVI.
"The team is not just Cristiano. No player in the world can solve a game if you do not have colleagues behind him.
"I think that we Portuguese have failed because we put too much pressure on one player only."