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 Iduna Park — usually packed with 82,000 people — empty after the Bundesliga became the first top European league to return, behind closed doors, following the coronavirus lockdown. “It is a very special game,” Flick said on Monday, with Bayern heading to Dortmund with a four-point lead. “As a coach, there is no question that the fans are a missing factor.” Ten of the 18 league games since the restart have been won by the away team. “The atmo...