The Real Madrid boss was at the Trolli Arena to watch the Bundesliga side defeat Greuther Furth 6-1 in preparation for their Champions League semi-final on April 24.
But the German tactician has claimed that his Portuguese counterpart will have learned nothing new from the trip.
“Mourinho will return home with reports that'll be useless to him in two weeks’ time,” he told reporters.
“I don't know if Madrid will be afraid of us after what happened in the group stage.”
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