Tuchel has sympathy for Tammy Abraham as he was left out of FA Cup squad.
The Blues beat Manchester City 1-0 to make their place in the finals of the FA Cup where they will face Leicester City.
Despite being fully fit for the game, Abraham didn’t even make the substitute bench.
There are rumours that Abraham is not interested in signing a new deal with the Blues after the latest snub.
Tuchel said: “I have a lot of sympathy for him, and I can absolutely understand that he’s worried, sad and maybe angry with me when I make these decisions.
“I have full understanding, but what I appreciate about Tammy and about all the others who are in a similar situation, is the mentality, the attitude he arrives with, because he never lets it affect the group.
“And that’s the main point to being a top professional. And don’t get me wrong, it’s also what we demand.
“You can be sure he wants to be the number nine and the guy who starts every game.
“So it’s a tough, tough situation for him personally, in a good moment for the team.”