Germany and Brazil go into tomorrow's World Cup final hoping to prove they are the best in the world... but one man on the field already knows he is number one. Italian referee Pierluigi Collina has long been considered the top official in the game and his appointment for the final has confirmed his status. "To be appointed means that those who decide believe in the official," said 42-year-old Collina. "It is unbelievable. I will try to keep my feet on the ground. I have done a lot of matches but the World Cup final is totally different and I am very proud and happy to have been called by FIFA."