SM
| Venue: Cardiff City Stadium |
Cardiff City | ||
| G | 1 | Neil Etheridge |
| CD-L | 22 | Sol Bamba |
| CD-R | 4 | Sean Morrison |
| DM | 17 | Aron Gunnarsson |
| LB | 3 | Joe Bennett |
| RB | 5 | Bruno Ecuélé Manga |
| CM-L | 7 | Harry Arter S  |
| CM-R | 21 | Víctor Camarasa |
| LM | 11 | Josh Murphy S |
| RM | 19 | Nathaniel Mendez-Laing S |
| F | 13 | Callum Paterson |
| Sub | 8 | Joe Ralls |
| Sub | 23 | Kadeem Harris |
| Sub | 33 | Junior Hoilett |
| Sub | 2 | Lee Peltier |
| Sub | 12 | Alex Smithies |
| Sub | 24 | Gary Madine |
| Sub | 14 | Bobby Reid |
Southampton | ||
| G | 1 | Alex McCarthy |
| CD-L | 4 | Jannik Vestergaard |
| CD-R | 35 | Jan Bednarek |
| LB | 33 | Matt Targett |
| RB | 43 | Yann Valery S |
| CM | 14 | Oriol Romeu S |
| CM-L | 18 | Mario Lemina |
| CM-R | 23 | Pierre-Emile Højbjerg |
| F | 10 | Charlie Austin S |
| CF-L | 17 | Stuart Armstrong |
| CF-R | 22 | Nathan Redmond |
| Sub | 5 | Jack Stephens |
| Sub | 16 | James Ward-Prowse |
| Sub | 20 | Manolo Gabbiadini |
| Sub | 3 | Maya Yoshida |
| Sub | 11 | Mohammed Elyounoussi |
| Sub | 28 | Angus Gunn |
| Sub | 6 | Wesley Hoedt |
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