Sutton's predictionpublished at 18:59 Greenwich Mean Time 28 February
Nottingham Forest v Man Utd (19:45 GMT)
When it comes to predictions, Manchester United are my new Chelsea - I get all of their results wrong.
I backed United to win at the weekend too, but the worst thing about their home defeat was that Fulham fully deserved the three points.
Nottingham Forest beat United at the City Ground at the end of December and they have still got a goal or two in them, although their league form since then has not been great.
This tie feels like it is going to be very close, and it could go the distance, but I think United will find a way to edge it.
Sutton's prediction: 1-1 and United to win after extra time and penalties
Kaiser Chiefs bassist Simon Rix's prediction: 1-1 and Manchester United to win after extra time and penalties