BVB are re-energised while Leverkusen have stabilised but the question remains: can anyone stop the champions? The Franz Beckenbauer Supercup has a modicum more intensity than most of its European equivalents. There are many reasons for this. The Bundesliga’s traditional season curtain-raiser pitting league champions against cup winners is not played on neutral territory, giving it the feeling of a domestic game with proper stakes. German fans would also never accept it taking place on foreign…