It was such a huge win by Leipzig yesterday and now the pressure is over Dortmund this week. The reason why is this win has pushed Dortmund out of top four in the standings.
In fact, Dortmund have to win after Leipzig's performance yesterday. The CL qualification is about at least 25 million extra compared to the Euro League qualification. According to the current UEFA rankings, the Bundesliga will get a fifth Champions League qualifying place next year. Therefore, even a fifth place, whether Dortmund or Leipzig, could be enough to qualify for the Europe's top competition.