The ball numbers have been confirmed ahead of the Carabao Cup Round One draw on Thursday 24 June 2021.
And the Blues are ball number 8 in the northern section of the competition.
A total of 35 fixtures will be drawn for Round One, with teams drawn in Northern and Southern sections, and matches scheduled to take place week commencing 9 August*.
The confirmed ball numbers for the draw, which takes place live on Sky Sports at 3:40pm, are as follows:
| North | South |
| 1. Accrington Stanley | 1. AFC Bournemouth |
| 2. Barnsley | 2. AFC Wimbledon |
| 3. Barrow | 3. Birmingham City |
| 4. Blackburn Rovers | 4. Bristol City |
| 5. Blackpool | 5. Bristol Rovers |
| 6. Bolton Wanderers | 6. Burton Albion |
| 7. Bradford City | 7. Cambridge United |
| 8. Carlisle United | 8. Cardiff City |
| 9. Crewe Alexandra | 9. Charlton Athletic |
| 10. Derby County | 10. Cheltenham Town |
| 11. Doncaster Rovers | 11. Colchester United |
| 12. Fleetwood Town | 12. Coventry City |
| 13. Harrogate Town | 13. Crawley Town |
| 14. Hartlepool United | 14. Exeter City |
| 15. Huddersfield Town | 15. Forest Green Rovers |
| 16. Hull City | 16. Gillingham |
| 17. Lincoln City | 17. Ipswich Town |
| 18. Mansfield Town | 18. Leyton Orient |
| 19. Middlesbrough | 19. Luton Town |
| 20. Morecambe | 20. Millwall |
| 21. Nottingham Forest | 21. Milton Keynes Dons |
| 22. Oldham Athletic | 22. Newport County |
| 23. Port Vale | 23. Northampton Town |
| 24. Preston North End | 24. Oxford United |
| 25. Rochdale | 25. Peterborough United |
| 26. Rotherham United | 26. Plymouth Argyle |
| 27. Salford City | 27. Portsmouth |
| 28. Scunthorpe United | 28. Queens Park Rangers |
| 29. Sheffield United | 29. Reading |
| 30. Sheffield Wednesday | 30. Stevenage |
| 31. Shrewsbury Town | 31. Sutton United |
| 32. Stoke City | 32. Swansea City |
| 33. Sunderland AFC | 33. Swindon Town |
| 34. Tranmere Rovers | 34. Wycombe Wanderers |
| 35. Walsall | |
| 36. Wigan Athletic |
*Clubs are able to mutually agree an alterative date prior to w/c 9 August 2021 if preferred.