Bayern tend to slip from time to time and give their rivals a chance to get closer, but Dortmund failed more than once in doing so. This time, however, it was a different story, as the Millionaires grabbed a late 1-0 victory at Mainz to reduce the gap between them and the Bavarians to only four points.It could’ve ended quite differently, though. Mainz and Dortmund displayed a football lullaby, without serious opportunities, with a total of only five shots on target altogether.Thankfully for the runners-up, things changed with Erling Haaland coming in with 30 minutes left. The Norwegian failed to put his name on the scoreboard, but his teammate Axel Witsel scored the game’s only goal a few moments before stoppage-time.##EDITORS_CHOICE##That is the first goal for the Belgian midfielder this season, but it could be of great importance for Dortmund in the title race ahead of us.In overtime, Julian Brant could have doubled the lead, but his close-range effort went a few inches off the target. Luckily for him, there was no time left on the clock for Mainz to go for the equalizer.