The wing-back, who signed for the Reds from Lecce earlier this month, is serving the first of a three-match suspension after being sent off for serious foul play during Wednesday's 3-2 home win over Ipswich Town.
His ban applies to all domestic competitions, meaning he will sit out of this fixture and the Premier League meetings with Arsenal and Leicester City too.
Noussair Mazraoui was introduced for Alejandro Garnacho to shore up the United defence following Dorgu's dismissal and he would appear to be the most obvious candidate for Ruben Amorim to draft into his starting XI.