Karanka was Mourinho's No2 at Real Madrid for three years.
He said: â€śFor me, to spend three years working with Jose was the best possible start.
â€śHe has supported me for the last month and wondered when I would arrive.
â€śI have been in contact with him 10 or 20 times and now that I have Âarrived, he will be Âhappy.â€ť
Karaka added: â€śIâ€™m Karanka â€“ there is only one Jose Mourinho and he is the best. My character is very Âdifferent. I am calm but the most important thing is to be a leader in the dressing room. The Âplayers have to believe in me.â€ť
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