The Man City boss told reporters: "Yep, by far [Klopp is his greatest rival] because we faced each other a thousand million times. Absolutely, he made me better, him and his teams, here and Dortmund, always been big rivals, good games for both, positive approach and always attractive. He made me a better manager through his teams, and of course the way the play is good with the transitions, the runs, they are a fantastic team, a top side, no doubt."