Bundesliga Opening Up With Dortmund's Loss to Hoffenheim

Renato Augusto celebrating his goal for Bayer Leverkusen
A couple of months ago I wrote about Borussia Dortmund, and the way that they had been dominating the Bundesliga. While Dortmund still have a strong lead of nine points over Bayer Leverkusen, things aren't looking as solid as they were back when Jurgen Klopp's team had gone 15 games without losing.