Klopp insists that his side are not favourites ahead of the clash with Leverkusen.
"There will be another 16 games that are no less important. We are glad that it kicks off again. The anticipation grows and so does the level of concentration which you need to play a good game," said Klopp on the Dortmund website.
"We don't feel like favourites at all. We are only able to compete with them if we push ourselves to the limit. The team that gets into the rhythm first has a good chance to win the match. That the season will be decided in the second half of the season is hardly new.
"The home match against Leverkusen was the only match in which we didnīt show at all what we are capable of. But we quickly drew the right conclusions."