Live coverage of the game is available on BT Sport 3 and BT Sport 3 HD.
Last week's first leg was postponed by 24 hours after a bomb attack on the Dortmund team bus en route to the game in Germany.
"I'm a part of this helpful process, and it's a joy to see how much the players talk to each other and respect each other's emotions", Tuchel said.
"Our mindset has to be the same as the very first leg".
It's the second-legs of the Champions League quarterfinals on Fox Sports.
Monaco may not have been directly targeted in the attack but the events and subsequent postponement were still hard to deal with for Leonardo Jardim and his young side, who saw teenage prodigy Kylian Mbappe score twice in the first leg. Bartra is expected to miss the next few weeks for Dortmund.
"My team is used to playing a certain way and that will not change".
"I don't mind who we draw next; in the semi-finals there's only huge clubs and we don't want to avoid anyone". But it will be a different game and we go to do our best to qualify.
He also broke the record as the youngest player to score five Champions League goals in the history of the elite tournament, as Monaco won 3-1 on the night and 6-3 on aggregate.
Monaco doubled their lead in the 17th minute as Thomas Lemar picked out Radamel Falcao, who headed into the bottom corner from close range.
"We know that tomorrow is a final, it will be necessary to respect our principles of play".
"Such an event can bring us together and give us extra energy". Our trademark is scoring goals. Attacking midfielder Marco Reus pulled one back in the 48th minute. "We're going to play just as we have since the start of the season", said Jardim, whose men started their Champions League journey with a defeat at Fenerbahce in the third qualifying round in late July. We know it will be very hard, but we are confident.
They will be looking for Christian Pulisic, 25, to try and turn this tie around as he has a ton of ability and can create the chances that they need to try and overcome the deficit.
Borussia Dortmund player ratings: Burki 4, Piszczek 5, Papastathopoulos 5, Ginter 6, Durm 3, Weigl 7, Sahin 4, Guerreiro 5, Kagawa 6, Reus 7, Aubameyang 5.
"We are no dreamers". We dominated the second half of the first leg in every statistical department.