"Zeman likes to attack and that is always good for football," Benitez told Sky Sport Italia.
"Clearly after three or four games in which we defended very well, today we had the game in hand and could've gone more than 2-0 up, but lowered the intensity level. That allowed Cagliari back into the match.
"Cagliari always score on their travels and if we had gone three or four up before half-time, the game would've been closed.
"Of course it is annoying, as after so much work we make these mistakes, I cannot be satisfied. We had the game in hand.
"The team did everything right to score, but we gifted the first goal and knew the second could happen. Let's not even talk about the third goal.
"I am angry because we had the game in hand and gave it to Cagliari."
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