Sheffield United must first win at Craven Cottage on Tuesday, 4 February (kick-off: 8pm) in the replay after the two teams drew 1-1 at Bramall Lane this afternoon. Chris Porter (30 minutes) had given the Blades the lead after he finished at the near post following Harry Maguire's cross.
After the break the hosts saw captain Michael Doyle dismissed for an off the ball incident and with 15 minutes remaining Hugo Rodallega fired home to force a replay in London.
The winner in London will face either Nottingham Forest or Preston North End at Bramall Lane in round five which will be played on Saturday, 15 February 2014.
The Draw in Full:
- Manchester City vs. Chelsea
- Sheffield United or Fulham vs. Nottingham Forest or Preston North End
- Arsenal vs. Liverpool
- Brighton & Hove Albion vs. Hull City
- Cardiff City vs. Wigan Athletic (holders)
- Sheffield Wednesday vs. Charlton Athletic
- Sunderland vs. Southampton
- Everton vs. Swansea City