Mourinho likes him for the way he has had to battle his way to the top, and he likes him because a combination of these qualities might just make him the true heir to Didier Drogba.
"When you look at the profile of the player, it's not just about the physical profile or the tactical profile," says Mourinho. "It's also the psychological profile. I have known Diego since he was 17 and he went to Portugal. Life was not easy for him.
"Then he had to go to Rayo Vallecano because Atletico had (Radamel) Falcao. He came back to Atletico when Falcao went.
"At Atletico he had to make people forget Aguero and Falcao. Without them (last season) they won the title and reached the Champions League final. But the guy had to fight a lot to arrive there, so I think he is the kind of guy who is afraid of nothing and ready for everything."
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