Mourinho is pleased with Salah's impact since his January arrival.
"Chelsea did very well, we sold a great player [Juan Mata], a finished product in the best moment of his career. We bought a kid from a different habitat, an Egyptian player playing in Switzerland.
"We know he needs time, we know next season he will be an important player for us. This season, step by step, he's playing 10 minutes here and there. You can feel the connection between him and the crowd; the crowd like him, they like his style of play.
"He's the type of player we need because we have wingers who prefer to play with the ball at their feet, he's the type of player who prefers the ball into space. Chelsea did very well to bring him, next season with him, Eden, Willian and Oscar, they will have more strength and experience, they have a good future."
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