What key areas or decisions might win the cup?

Chelsea will need discipline and defensive solidity if they are to find a way past Manchester City in Saturday's FA Cup final. There were encouraging signs in that regard last weekend, as interim head coach Calum McFarlane's switch to a back three (or five out of possession) yielded a 1-1 draw against Liverpool. The system offered greater protection in wide areas and a more compact defensive structure overall.

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