FRANKFURT — There is a single black flag where the heart of the Commerzbank Arena should be. All around it, in the stadium’s Kurve, the terraces that are ordinarily home to Eintracht Frankfurt’s most ardent and raucous fans are empty. Exposed, they are just concrete: desolate, silent and gray.
The flag, a couple dozen rows high, looms behind the goal posts in the middle of the space. Just a black flag, inscribed with one word — Montag — scored out by a red circle and a slash.
The campaign has now been running for nearly three years.