Will Fernandinho start in City's defence again?

 Walker or Cancelo? Who starts left-back for Man Utd? And Will Mason Greenwood get the nod again?

Ahead of the Manchester derby, live on Saturday Night Football on Sky Sports Premier League, we run through the main selection dilemmas facing Pep Guardiola and Ole Gunnar Solskjaer.

With City desperate to close the gap on Liverpool at the top of the Premier League, and neighbours United trying to save their own season, these conundrums could have a massive impact at the Etihad...