And Newcastle preferred to leave an empty place on the bench (again Man Utd) rather than fill it with an U23 player.
Not a ringing endorsement for their PL2 Div2 players...
Annoyingly, they don't have to.
In their Covid rules, the Premier League themselves defined a first-team player as anyone in the squad of 25, or any U23 player who has played a first-team match, in league or cup.
So some clubs (see also Newcastle) are opting not to promote an U23 in league or...
Because the special 'Covid' postponement rules agreed by Premier League owners before Xmas (but after our Wolves match - grrrrr!) mean they don't have to.