The El Tri boss has dismissed his opposite number's mind games and is hoping his country's boisterous supporters can help his side get the point they require against Croatia
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Kovac says he knows what tactics to employ to get the win his side needs but, in response, Herrera joked: "Only if he is a cook will he have the recipe."
Herrera believes talk is cheap ahead of the meeting in Recife.
"We can say 20,000 things but what matters is what we do on the field. We have proven our determination and attitude," he added.
"These are two teams that will play at their best. We are going to run and play hard."
Mexico will again be roared on by a large and vociferous support, and Herrera admits it is a help having so many countrymen in attendance.
“We are motivated about being the home team, we will hear the support of Mexico and we will do our best on the field.
“We want our fans to keep dreaming with the goal we have.”
Herrera confirmed he will keep the same side which drew 0-0 with Brazil last time out.