Manchester United v AC Milan key battles

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The Independent Football

Manchester United's bid to reach a third successive Champions League final takes them into familiar territory - and against a familiar opponent - on Tuesday.

Click here or click the image to launch our guide.

But while David Beckham has won at the San Siro, United never have, or beaten AC Milan in two-legged European combat.

Here, we take a look at the key battles that will need to be won at the San Siro if the Red Devils are to reverse that trend.