Giant killing Saarbrücken are just one victory away from becoming the second team from the third division to reach a German Cup final, and they will like their chances. Borussia Mönchengladbach became Saarbrücken’s latest scalp thanks to a stoppage time 2-1 winner from Kai Brünker in the quarter-finals on Tuesday night. Second tier Kaiserslautern are their semi-final opponent on April 2 en route to the May 25 final in Berlin. The match will be in Saarbrücken because teams below the second division play all Cup games at home. Saarbrücken continued their remarkable run in the competition which h…