The crisp October air carried an electric tension through Dortmund's streets on October 23rd, 2013, as the city prepared for one of German football's most passionate rivalries.
Mateo walked through the Brackel training ground with Lukas, his roommate's excitement palpable as he explained the cultural significance of the Revierderby the match that would pit Dortmund against their bitter rivals Schalke 04 in just three days.
"Cultural immersion: subject experiencing first exposure to German football's most intense regional rivalry," the System observed as they made their way to the dormitory. "Educational opportunity for understanding local football culture and community significance beyond tactical considerations."
