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

On 21 June, Cardiff City announced their first four pre-season friendlies, against Kidderminster Harriers, KV Kortrijk, Penybont and Reading.

[68] In July, a pre-season training camp in Austria was announced along with friendly matches against Hamburger SV, Hertha BSC and Mamelodi Sundowns.

[74] Win Draw Loss Fixtures Cardiff City entered the competition in the third round, and were drawn away against Sheffield United.

[85][86] Win Draw Loss Fixtures Players with no appearances are not included on the list