DORTMUND, GERMANY - FEBRUARY 28: Roberto Di Matteo, head coach of Schalke reacts to his player Kevin-Prince Boateng during the Bundesliga match between Borussia Dortmund and FC Schalke 04 at Signal Iduna Park on February 28, 2015 in Dortmund, Germany. (Photo by Martin Rose/Bongarts/Getty Images)
