Third-tier Arminia Bielefeld stunned holders Bayer Leverkusen 2-1 on Tuesday, coming from a goal down to reach the German Cup final.

For Frank Schmidt, the head coach of Heidenheim, Arminia Bielefeld—a team recently facing relegation—serves as a significant example ahead of their upcoming match against the double winners, Bayer Leverkusen.

Leverkusen were left unhappy with the condition of the pitch in Tuesday night's 2-1 defeat to the third division side.