The Blades and the Stags have never met in this competition and will be their first professional meeting since April 1989. No date or kick-off time has yet to be decided.
Round One
Oldham v Middlesbrough
Shrewsbury v Blackpool
Sheffield Wednesday v Notts County
Tranmere Rovers v Nottingham Forest
Leeds United v Accrington Stanley
Bolton Wanderers v Bury
Rochdale v Preston North End
Rotherham United v Fleetwood Town
Carlisle United v Derby County
Port Vale v Hartlepool United
Morecambe v Bradford City
Barnsley v Crewe Alexandra
Chesterfield v Huddersfield Town
Blackburn Rovers v Scunthorpe United
Burton Albion v Wigan Athletic
York City v Doncaster Rovers
Sheffield United v Mansfield Town
Reading v Newport County
Bristol City v Oxford United
Brighton & Hove Albion v Cheltenham Town
Coventry City v Cardiff City
Luton Town v Swindon Town
Dagenham & Redbridge v Brentford
Charlton Athletic v Colchester United
Crawley Town v Ipswich Town
Wolverhampton Wanderers v Northampton Town
Yeovil Town v Gillingham
Milton Keynes Dons v AFC Wimbledon
Exeter City v AFC Bournemouth
Stevenage v Watford
Plymouth Argyle v Leyton Orient
Birmingham City v Cambridge Untied
Portsmouth v Peterborough United
Millwall v Wycombe Wanderers
Southend United v Walsall