The outcome could have a profound effect on whether interim boss Benitez succeeds in convincing Chelsea to extend his stay at Stamford Bridge and supporters that he is not the enemy.
But the former Liverpool boss said: "I am not worried about what is going on in the future.
"I am worried about what is going on tomorrow."
He added: "I cannot manage the other things."
"I'm really pleased, I'm really proud, because I could manage three top sides in the world," he said. "To be here and to have this opportunity to win again is amazing and is fantastic.
"I know that it is a very important competition.
"Some people say that it is not the biggest in the world.
"We know that the Copa Libertadores or Champions League are maybe a little bit different because you play 13 games and you play during the whole season.
"To be here, you have to be champions. After, you have to win."