Alvarez praised Mazzarri, simultaneously aiming a sideswipe at former Inter tacticians.
"Mazzarri is very good and has clear ideas," the Argentine told Sky Sport Italia.
"That is fundamental for us, because this way we know how to behave on the pitch and every movement we are supposed to be making.
"Can Inter win the Scudetto? I won't talk about that. Right now the important thing is to beat Genoa so we can get off to a strong start and build confidence."
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