"This situation is totally natural, he has to do exactly what he does; train well, be in a good mood and accept that he is a striker for Chelsea so this is the highest competition in Europe," said Tuchel.
"When you play for Chelsea, it is a difficult decision I have to take and I am very very happy when I have to take them because it means everybody is on board.
"There is no other answer to it other than to accept it and be there on Monday to fight for your place in the squad. I am sure he will do it."
Abraham's Chelsea contract is up in 2023.