Karanka was Mourinho's No2 at Real Madrid for three years.
He said: â€œI canâ€™t be compared with Mourinho because he is the best and I am just starting.
â€œSome day I hope I can say I am â€“ not right up there like Mourinho because he will always be the best â€“ a big coach. And I want to play an FA Cup Final against him.â€™â€™
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