Ronaldo role and new formation - Manchester United need to solve three things before Man City match

It's going to feel like a very long week for Manchester United fans as they wait to see their side back in action.

After a packed fixture schedule, Ralf Rangnick's side have been blessed with a rare midweek off, though they'd probably like to have another match in order to put things right after a wasteful weekend draw with Watford.

Instead, it will be a long wait until their trip to face Man City on Sunday afternoon, a match which will likely fill fans with dread more than excitement given their recent form.

For interim manager Rangnick, the time off gives him plenty of time to perfect a game plan and work on a few things that need addressing ahead of their derby showdown.

There are three things which need looking at in particular.

Shooting practice

As of late, United's biggest problem has been in front of goal, with their profligacy showcased once again in the weekend draw with Watford.

United have created plenty of chances in matches since Rangnick took charge, but so often their downfall comes from failing to capitalise on their dominance.

In matches against Middlesbrough, Burnley, Southampton and Watford they recorded an expected goal output of 10.99. Yet instead of scoring double figures, they managed just three goals, failing to win any of the aforementioned games.

Chances could be at a premium against City this weekend, and they can't afford to waste any of the ones they do get.

Formation change

United's hopes of getting a positive result at the Etihad could well rely on Rangnick throwing a tactical surprise to catch Pep Guardiola off-guard. It is certainly worth looking at this week.

In the away draw with Chelsea back in November, caretaker manager Michael Carrick sprung his own surprise when Cristiano