Brazil World Cup winner Ronaldo feels Argentina ask too much of Barcelona star Lionel Messi.

A lot of people like to compare Messi's achievements and performances for Barça with those for Argentina.

Real Valladolid owner Ronaldo said, "I think it's unfair those types of comparisons. At Barcelona he's training with his teammates on a daily basis, he is allowed to be more relaxed and is able to develop his best football.

"But I don't think there's a difference. I'm convinced that Messi wants to win something with the national team and would do everything within his power to make it possible. At 32, he could turn down playing in a Copa America. Instead, he's put off going on holiday in order to stay with his country and help win that title Argentina so desperately want."