Manchester United boss Sir Alex Ferguson says Cristiano Ronaldo needs a Champions League winner's medal to be considered the world's best player.
"I know the others are keen to join them.
"We are rating Cristiano Ronaldo the best player in the world. But he needs the medals to prove it."
Ferguson also paid tribute to his new signings.
He added: "Carlos Tevez has a marvellous understanding with Wayne Rooney.
"Owen Hargreaves has adjusted quickly, Anderson has been a revelation and Nani is getting better all the time."