Carlo Ancelotti is tasked with convincing Chelsea they can become become the first team ever to knock Manchester United out of Europe having lost the first leg of a tie at home. Only two clubs have ever produced an equivalent turnaround in the Champions League but Ancelotti has insisted there is no reason why The Blues cannot become the third at Old Trafford.
The Italian said: "In Italy, we have a saying. 'If you have two, then you next have three'.
"They have to truly believe that we can win there. I don't know if they will be able to do this.
"But, at the start of the game, you have to believe that you can win."
Ancelotti knows his side need to produce a near-flawless performance at Old Trafford if they are to overturn Wednesday night's 1-0 first-leg defeat at Stamford Bridge.
"To win there, you have to do 100 per cent in everything," he said.
"And not just 100 per cent, but you have to use personality, courage, you have to control the game."
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