Keeping a clean sheet isn’t that hard is it?
Well yes, very, if you are Manchester United and their back four who seem to be letting in more goals than Liverpool these days.
United are missing their old solidity at the back and simply cannot allow uncertainty and fragility to creep through if they want to come out on top against Chelsea.
The Blues are efficient from set plays, open play and well just about any occasion they have the ball really.
United’s defence have to be at the very top of their game, which for them probably means only conceding a couple of goals.