Inside Europe’s biggest giant killers with third tier side in major cup final after shocking FOUR Bundesliga teams

YOU might not be aware of German third-tier side Arminia Bielefeld.

But the minnows have certainly made themselves known to the top dogs.

EPAArminia Bielefeld beat Bayer Leverkusen to reach the final of the DFB Pokal on Tuesday[/caption] EPAIt was the fourth time the third-tier side beat a Bundesliga club in the competition this season[/caption] AFPArminia currently play in the third tier of German football[/caption] GettyBayer Leverkusen head coach Xabi Alonso was left...