Meanwhile, Brentford boss Thomas Frank also has a player absent through suspension.
Sergio Reguilon was red-carded after eight minutes of the 2-1 defeat to Burnley last time out. The defender is on loan with the Bees from Tottenham, after a similar spell at United earlier in the campaign.
The full-back must sit out one match and, unfortunately for him, it is a game he would not want to have missed.