[54] A joint decision was made on 19 June 2017 to cancel the scheduled friendly with Portsmouth as the clubs were drawn together in the EFL Cup first round.

Source: [citation needed] In the FA Cup, Cardiff City entered the competition in the third round and were drawn at home versus Mansfield Town.

[57] They were drawn at home against Manchester City in the fourth round, losing 0–2.

On 16 June 2017, Cardiff City drew Portsmouth at home in the first round.

[58] After beating Portsmouth, Cardiff City were drawn against Burton Albion at home, losing 1–2.