Barcelona legend Johan Cruyff has told Cristiano Ronaldo to 'grow up' if he is affected by opposing fans chanting Lionel Messi's name.Denmark supporters shouted the Barcelona star's name whenever Ronaldo touched the ball during Portugal's 3-2 victory against the Scandinavians at Euro 2012.

This has been a recurring strategy used by opposing fans in recent times, and Ronaldo could not resist to taking a swipe at the Argentine when asked about the chants.

Cruyff said the 27-year-old should remain indifferent to what comes from the stands.

"To Ronaldo, it must be the same if the fans talk about his mother or Messi," he told reporters.

"If that concerns him, he needs to grow up."