SAINT PETERSBURG, RUSSIA - FEBRUARY 25: Borussia Dortmund's head coach Juergen Klopp and Nuri Sahin of Dortmund celebrate after the UEFA Champions League round of 16 match between FC Zenit and Borussia Dortmund at Petrovsky Stadium on February 25, 2014 in Saint Petersburg, Russia. (Photo by Alexandre Simoes/Borussia Dortmund/Getty Images)