City have real defensive issues

As do United of course, but City are not looking so great at the back themselves these days.

If United can get past the Chelsea defence, they will hope to get at least one past City, with Rooney fit to return and the likes of RVP and Di Maria full of confidence to boot.

City, like United, do not seem to be able to hold onto a lead and if there is just one goal in it, anything could happen before the final whistle blows and both sets of players will know it.