FC Schalke 04 v Chelsea FC - UEFA Champions League [Getty Images]

GELSENKIRCHEN, GERMANY - NOVEMBER 25: Roberto Di Matteo, head coach of Schalke looks on prior to the UEFA Champions League Group G match between FC Schalke 04 and Chelsea FC at Veltins-Arena on November 25, 2014 in Gelsenkirchen, Germany. (Photo by Boris Streubel/Getty Images)

Getty Images Sport Boris Streubel