The Blues eased into a 35th-minute lead against their rivals thanks to Diego Costa’s opener in the fifth-round tie.
However, David Faupala levelled for the Citizens just two minutes later to leave the cup tie all square at half-time.
However, Chelsea’s most consistent player, Willian, restored the west London side’s lead after half-time before Gary Cahill added a third for the hosts.
Eden Hazard and Bertrand Traore sealed their place in the quarter-final draw with late strikes.
Here is the best of the Twitter reaction from the professionals, past and present, in chronological order to Chelsea’s FA Cup win.
Former Blues defender Mario Melchiot is hoping Hazard is back to his best:
— Mario Melchiot (@MarioMelchiot) February 21, 2016
Ruud Gullit reckons his former club are desperate to reach the next round:
— Ruud Gullit (@GullitR) February 21, 2016
Arsenal supporter Piers Morgan is offended on behalf of all football fans (unless you support Chelsea):
What a farce.
Anyone still believe in the 'magic' of the FA Cup?
Gone the same way as the tooth fairy for me. #CFCvMCFC
— Piers Morgan (@piersmorgan) February 21, 2016
Finally, Chelsea fan Trevor Nelson didn’t see the point of City turning up:
Man city should've stayed at home and forfeited that game.
— Trevor Nelson (@DJTrevorNelson) February 21, 2016
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