The result leaves Bayern Munich with a seven-point lead at the top of the table and within sight of being crowned German champions for an eighth successive season.
It would need to drop points in at least three of their remaining six matches and that would require a vulnerability that Bayern almost never show.
Joshua Kimmich scored the crucial goal, shortly before half-time, with his deft chip from outside the Dortmund penalty area beating keeper Roman Bürki. It was a sublime touch for a defensive midfielder and one that we instead might have expected to see from one of the two star strikers who started the game.
This had been billed as a showdown between Bayern’s Robert Lewandowski and Dortmund’s Erling Braut Haaland.
Lewandowski, the experienced and prolific former Dortmund forward, is the Bundesliga’s leading scorer. Haaland, the teenage phenomenon, is coveted by some of the biggest clubs on the planet for his pace, strength and goal scoring prowess.
Yet neither found the back of the net in this game — although Lewandowski did see a deflected shot hit the post in the second half — and Haaland’s match ended early when he limped off twenty minutes from the end.
Late season encounters between Bayern and Dortmund have been one-way traffic in recent seasons. The Munich team winning the last three such games by an aggregate of 15 goals to one.
Yet, this game looked like it might be different as Dortmund began brightly — even getting the ball in the net in the 10th minute, although the goal was disallowed for offside.
As the match wore on, Bayern’s dominance increased and, after Kimmich’s goal, it was hard to see any other winner. Maybe even Dortmund believed it because there was no protest in the second half when TV replays showed a shot from Haaland had struck the arm of Bayern defender Jerome Boateng.
The VAR officials were silent, like the rest of the Signal Iduna Park, and there was no penalty.
Dortmund’s cause wasn’t helped by its unusually quiet stadium. Their cavernous stadium echoing only to the sound of the players’ shouts and the ball pinging from boot to boot, instead of the usual wall of noise created by 80,000 fans. Spectators are still banned to eliminate the health risk that would be posed by a combination of Covid-19 and large crowds.
For the neutral fan and sports followers across the globe, so starved of top flight action right now, Bayern’s victory could be viewed as a disappointment. For some, it could make the rest of the Bundesliga season just that little bit less enticing.