Tuchel explained that he would not get carried away with emotion when Chelsea tackles Leicester after the Blues were defeated against Arsenal on Wednesday.
The German said this on Friday during his pre-match press conference.
Chelsea head to the game after losing 1-0 against Arsenal in their last fixture on Wednesday night at Stamford Bridge.
“I still have a hangover from the last defeat [against Arsenal], it is always like this. So I’m still in angry mode.
“When we arrive at the hotel. Tomorrow, I hopefully will transform it into good preparation and push it to the edge.
“We have to show a reaction, and this is it. It’s a big match, at Wembley, an FA Cup final, my first final in Wembley. It’s huge, but I won’t get carried away with emotion.”