Borussia Dortmund manager Edin Terzic has revealed that his side's preparation for Saturday's 'Der Klassiker' clash against Bayern Munich was affected by the appointment of Thomas Tuchel as the new Bayern manager.
Dortmund travel to Munich one point clear of Bayern at the top of the Bundesliga table.
Speaking at a pre-match press conference on Friday, Terzic said the firing of Julian Nagelsmann in favour of Tuchel "obviously changed our preparation a little bit" for the top-of-the-table clash.
He admitted that Dortmund had watched "the first six games of Thomas Tuchel at Chelsea" to get an idea of "what could happen in this situation or that".
However, Terzic praised Tuchel's ability to "bring Chelsea together in just a few months and be rewarded by winning the Champions League at the end of the season".
He described Tuchel as "one of the best managers in Europe and one of the most successful".
Terzic also confirmed that several players would return from injury for the clash, including goalkeeper Gregor Kobel, midfielder Julian Brandt and forwards Youssoufa Moukoko and Karim Adeyemi.
There were "question marks" over English teenager Jamie Bynoe-Gittens and Germany defender Nico Schlotterbeck for the game, while USA forward Gio Reyna and Belgium defender Thomas Meunier have been ruled out.
Dortmund have not won in Munich in the league since 2014, but Terzic said "we're a different side" this year.