Borussia Dortmund dropped important points in the fight for a spot in the Champions League in a goalless draw at promoted Heidenheim. This was Dortmund’s first goalless draw in the Bundesliga since October 2019. The guests endured a lot of pressure from Heidenheim and thought they had their opener in the 26th minute after Donyell Malen received a pass from Jamie Bynoe-Gittens before rounding goalkeeper Kevin Müller and firing it home from a tight angle. But after a video review, the goal was ruled out because Malen was offside. After the break, there were only a few goal chances and Dortmund h…