The team was in the fourth division fifteen years ago, but they advanced to Europe by finishing eighth in their first season in the Bundesliga last year, where they will take against Chelsea in the Conference League.
They have already defeated St. Pauli and Augsburg this season, and on Friday night they will play Borussia Dortmund, who are also unbeaten and have not let up a goal this year.
“Our goal for Friday is to maintain the current momentum and be fully present,” stated Paul Wanner, an 18-year-old midfielder who has already scored two goals for Heidenheim this season.
Bayern, led by Vincent Kompany, have also triumphed in their first two matches. They will take on recently promoted Holstein Kiel on Saturday at 17:30 BST.
Prior to the international break, champion Bayer Leverkusen’s 35-game unbeaten Bundesliga streak came to an end when they lost to RB Leipzig.