"When Chelsea were thinking of signing me, it was Mourinho who came to see me," he told the Sun.
"He said 'If you want to be a great forward like Thierry Henry or Ruud van Nistelrooy, you have to come and play with me in England, at Chelsea'.
"It's true that I was a good player in the French league at the time but he made me one of the best in Europe.
"That's why I, for Jose, was capable of going to the ends of the earth."
Drogba says that Mourinho revolutionised the Blues by instilling a winning mentality throughout the squad.
"When I arrived I already knew how to play football. Petr Cech also knew how to play football. But Jose transformed good players into winning players. We only thought about winning.
"He adores winning. The majority of coaches arrive at a club and say 'I'll try to win but it'll be difficult'. He says 'I'm here to win' and he wins. That makes him special.
"Even after Mourinho left, that winning mentality stayed there. He left that legacy at Chelsea."
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