Former Real Madrid president Ramon Calderon feels Cristiano Ronaldo may be unsettled by Gareth Bale's arrival from Tottenham.

With Manchester United monitoring developments closely, Calderon warned that Bale's arrival for a world record fee could easily unsettle Ronaldo.

"I don't think he's going to be happy with that," he told the Telegraph.

Ronaldo has just two years left on his current contract and Calderon added: "The extension of the contract is going to be a problem in this case, with that amount of money paid for Bale."

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