The 29-year-old goalkeeper is also trying to break into the Argentina squad and knows playing in the Premier League would boost his chances.
"My ideal future is to be promoted with Palace - I've been here five years now and I would love to stay," he told the South London Press.
"But I'm desperate to get that promotion because it would probably open the door in terms of recognition for the national team.
"I can't lie - if an opportunity arose for me I would have to see the situation. And if it was good I would have to take it. But I'm not very concerned about that - I know people are talking about different clubs watching me but I'm not worried about it."