VfB Stuttgart laboured to a 2-1 victory over last season’s finalists Kaiserslautern to reach the third round of the German Cup. Nick Woltemade in the 14th and Chris Führich in the 75th were on target for Stuttgart. Boris Tomiak got a temporary equalizer for second division Kaiserslautern with a penalty that would have not been given had VAR been in place because Fabian Rieder tripped Marlon Ritter outside the penalty area. VAR is only used from the third round onwards. Elsewhere, second division Cologne ousted Bundesliga side Holstein Kiel 3-0, and Jahn Regensburg won a second tier duel 1-0 ag…