Monchengladbach and Dortmund play out a 1-1 draw in the Bundesliga.
Bayern Munich strike back to draw 1-1 with Dortmund.
Celtic and Club Brugge play out a 1-1 draw in the Champions League.
Borussia Dortmund smash Dinamo Zagreb 3-0 in the Champions League.
Mainz inflict yet another away defeat on Dortmund.
