SM
| Venue: Vicarage Road Stadium |
Watford | ||
| G | 26 | Ben Foster |
| CD-L | 15 | Craig Cathcart |
| CD-R | 27 | Christian Kabasele |
| LB | 25 | José Holebas |
| RB | 21 | Kiko |
| CM-L | 20 | Domingos Quina |
| CM-R | 16 | Abdoulaye Doucouré |
| CF-L | 9 | Troy Deeney S  |
| CF-R | 7 | Gerard Deulofeu S |
| AM-L | 37 | Roberto Pereyra |
| AM-R | 12 | Ken Sema S |
| Sub | 33 | Stefano Okaka |
| Sub | 8 | Tom Cleverley |
| Sub | 10 | Issac Success |
| Sub | 6 | Adrian Mariappa |
| Sub | 1 | Heurelho Gomes |
| Sub | 14 | Nathaniel Chalobah |
| Sub | 11 | Adam Masina |
Cardiff City | ||
| G | 1 | Neil Etheridge |
| CD-L | 22 | Sol Bamba |
| CD-R | 4 | Sean Morrison |
| DM | 17 | Aron Gunnarsson S |
| LB | 3 | Joe Bennett S |
| RB | 5 | Bruno Ecuélé Manga |
| CM-L | 7 | Harry Arter |
| CM-R | 21 | Víctor Camarasa |
| LM | 11 | Josh Murphy S |
| RM | 33 | Junior Hoilett |
| F | 13 | Callum Paterson |
| Sub | 14 | Bobby Reid |
| Sub | 2 | Lee Peltier |
| Sub | 19 | Nathaniel Mendez-Laing |
| Sub | 12 | Alex Smithies |
| Sub | 23 | Kadeem Harris |
| Sub | 10 | Kenneth Zohore |
| Sub | 8 | Joe Ralls |
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