Mazzarri is pleased to now be going into their Champions League showdown with Villarreal on the back of a 4-2 triumph.
"I barely have time to celebrate because there is no respite between one game and another, but I am old and experienced enough to keep celebrations to a minimum anyway and make sure the players keep their feet on the ground," said Mazzarri.
"In the Champions League nobody wants to lose and I know full well it won't be easy against Villarreal, especially as we are away from home. They are a good side and have some important players coming back into the team. Let's not forget they knocked us out of the Europa League last year."