SM
| Venue: Liberty Stadium |
Swansea City | ||
| G | 25 | Erwin Mulder |
| CD-L | 17 | Cameron Carter-Vickers |
| CD-R | 5 | Mike van der Hoorn |
| LB | 24 | Declan John S  |
| RB | 23 | Connor Roberts |
| CM | 21 | Matt Grimes |
| LM | 10 | Bersant Celina |
| RM | 28 | George Byers |
| F | 46 | Courtney Baker-Richardson S |
| LF | 15 | Wayne Routledge S |
| RF | 20 | Daniel James |
| Sub | 26 | Kyle Naughton |
| Sub | 9 | Oliver McBurnie |
| Sub | 27 | Jay Fulton |
| Sub | 12 | Nathan Dyer |
| Sub | 1 | Kristoffer Nordfeldt |
| Sub | 19 | Barrie McKay |
| Sub | 16 | Joel Asoro |
Millwall | ||
| G | 1 | Jordan Archer |
| CD-L | 5 | Jake Cooper |
| CD-R | 4 | Shaun Hutchinson |
| LB | 25 | Murray Wallace S |
| RB | 12 | Mahlon Romeo |
| CM-L | 6 | Shaun Williams S |
| CM-R | 28 | Ryan Leonard |
| LM | 44 | Ben Marshall S |
| RM | 7 | Jed Wallace |
| F | 9 | Lee Gregory |
| RCF | 8 | Ben Thompson |
| Sub | 11 | Shane Ferguson |
| Sub | 20 | Steve Morison |
| Sub | 22 | Aiden O'Brien |
| Sub | 15 | Alex Pearce |
| Sub | 18 | Ryan Tunnicliffe |
| Sub | 16 | David Martin |
| Sub | 10 | Fred Onyedinma |
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