"Normally you can understand the reaction because it's a derby and it was special," said Benitez in a press conference broadcast on Sky Sports News.
"Stevie is a key player and I think everything will be the same, in terms of if I need to use him I will use him for sure, and if I need to replace him he knows that it's thinking about the best for the team.
"After talking to him he knows my idea. As a manager you need to make decisions in the moment.
"In this case Lucas Leiva was a big part of the victory, so I think that everything was okay."