DORTMUND, GERMANY - APRIL 08:  Xabi Alonso (L) of Real Madrid  challenges Marco Reus of Borussia Dortmund during the UEFA Champions League Quarter Final second leg match between Borussia Dortmund and Real Madrid at Signal Iduna Park on April 8, 2014 in Dortmund, Germany.  (Photo by Boris Streubel/Getty Images)