Millwall competed in the Championship for the fourth consecutive season and finished in 11th place.

Note: Flags indicate national team as has been defined under FIFA eligibility rules.

[24] The third round draw was made on 30 November, with Premier League and EFL Championship clubs all entering the competition.

[26] The first round draw was made on 18 August, live on Sky Sports, by Paul Merson.

[27] The draw for both the second and third round were confirmed on September 6, live on Sky Sports by Phil Babb.