Bayern Munich head coach Hansi Flick says the absence of spectators for Tuesday’s top-of-the-table Bundesliga clash at Borussia Dortmund will be a “missing factor”. Reigning champions Bayern thrashed second-placed Dortmund 4-0 last November in front of 75,000 fans at the Allianz Arena. But the teams will meet again in Dortmund with the stands at Signal […]