The competition has undergone yet another revamp and the First Round is now being regionalised with teams being divided into Northern and Southern sections and half 'seeded'.
Leeds are 'seeded' and therefore cannot meet any other Coca Cola Championship side in the First Round.
Each tie will be settled on the night, with no 2nd legs or replays.
Northern Seeds
Leeds United
Wolverhampton Wanderers
Sunderland
Wigan Athletic
Sheffield United
Stoke City
Nottingham Forest
Preston North End
Rotherham United
Crewe Alexandra
Burnley
Derby County
Walsall
Bradford City
Hartlepool United
Port Vale
Tranmere Rovers
Barnsley
Wrexham
Northern Non-Seeds
Blackpool
Oldham Athletic
Sheffield Wednesday
Stockport County
Chesterfield
Grimsby Town
Notts County
Doncaster Rovers
Hull City
Huddersfield Town
Mansfield Town
Lincoln City
Bury
Darlington
Macclesfield Town
Rochdale
Scunthorpe United
Chester City
Shrewsbury Town