And Herrera says the need for winning is higher at the Parc de Princes.
"The requirement that there is in Paris, I had never known it before," he told Stadio TV.
"Here, winning is a total obligation, otherwise, it is a tragedy. We lost 2 -1 in Dortmund. In the Champions League, it was a good away result. But it was considered an absolute tragedy. In the return, the group cohesion was incredible and it gave us the victory."
Herrera also compared Tuchel to former United manager Louis van Gaal.
"In broad outline, he makes me think of Van Gaal. He likes football organised by position.
"He has nothing to do, for example, with Marcelo Bielsa, a trainer who also favours attacking play, but who is looking for football in continuous movement, where you have to break the lines, go get the ball yourself."
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