Andre Villas-Boas admits the Chelsea job is the ultimate for him.
The critics have already pointed to his age as a cause for concern but Villas-Boas will attempt to prove them wrong by satisfying Roman Abramovich's thirst for trophies.
Chelsea's new manager said: "This job is all I ever wanted.
"I accept people may view it as a gamble employing someone so young, but if I didn't believe I could succeed what is the point?
"I have expectations and want to look back on a career I can be proud of. I want success."
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