Gelsenkirchen: Having routed Schalke on their last Gelsenkirchen visit, Real Madrid return to Germany for Champions League last 16, first-leg, clash with Toni Kroos warning the Spanish giants against complacency.


Toni Kroos. Pic/Getty Images 

Real ran riot at Schalke's Veltins Arena at exactly the same stage of the competition last February when Karim Benzema, Cristiano Ronaldo and Gareth Bale each scored two goals in a 6-1 thrashing as part of a 9-2 aggregate victory.