The agent of Cristiano Ronaldo can't see him being prised away from Real Madrid. Ronaldo has been linked with Manchester City and former club Manchester United.
Mendes told the BBC: "He is the most expensive player in the world because he is the best sportsman ever.
"You can't compare Cristiano Ronaldo with anybody else.
"£100m? Cristiano Ronaldo, it's impossible to find someone like him.
"If for any reason, tomorrow, the club decide to sell him for £300m, someone will pay."
