The Reds striker has netted seven times against City in the league since joining the club from Everton and has been a constant thorn in their side.
This week's trivia question was:
Can you name the other five top-scoring Reds in post-War league matches against City?
Check out the answers in the black box.
More trivia questions: Scored cup goals against United | 3-2 comebacks | Earliest away goals at OT | Goalkeepers meeting the Reds | Oldest scorers in Premier League | Internationals at Old Trafford | Old Trafford penalties | England's seven Reds | Alan Hardaker Trophy winners | Scored against United | United stars at European Championship | Goals for England
Sir Bobby Charlton - 8
Eric Cantona - 7
Wayne Rooney - 7
Steve Coppell - 5
Frank Stapleton - 5
Dennis Viollet - 5