The game at Vicarage Road will be played on the weekend of 26th/27th January.
Full Fourth Round Draw:
Arsenal v Stoke City/Newcastle
Coventry v Walsall/Millwall
Oldham v Huddersfield Town
Swindon/ Barnet v Fulham/ Bristol Rovers
Wigan v Chelsea
Luton/Liverpool v Swansea/Havant & Waterlooville
Southend v Barnsley
Southampton v Norwich/Bury
Man Utd v Tottenham/Reading
Portsmouth v Plymouth
Derby/Sheff Wed v Preston
Watford vWolves
Peterboroughv Charlton/West Brom
Sheff Utdv West Ham/Man City
Mansfield v Middlesbrough
Tranmere/Hereford v Cardiff
Ties to be played on 26th & 27th January