Why Mourinho does always Ivanovic? Here is a beginning of explanation:
"At the same time, every team, except Maccabi Tel Aviv, is a team of giants. And if you don't have a minimum of five tall players good in the air, you are dead in set pieces. When I play Azpilicueta on the right and Baba Rahman on the left and I don't play Ivanovic, I have only three, not even four. So we have to think about all the details. And I think about all the details."
Playing Hazard, Pedro, Willian, Azpi, Fabregas, Baba does not help apparently !!