Former Barcelona midfielder Emmanuel Petit says Real Madrid star Cristiano Ronaldo deserves the Ballon d'Or over Lionel Messi.

The Arsenal legend says Ronaldo has proved himself in two top competitions.

"After being the King of England, he did not hesitate in taking the chance of a new challenge with Madrid," said Petit of the former Manchester United man.

"He has been able to assume their responsibilities fully, and may have more heading ability than Messi. But I hope that both will reach the very highest level possible with their sides."