Aaron Wan-Bissaka has been given a two-match ban by Uefa for his sending off during Manchester United's Champions League defeat to Young Boys.
The defender, 23, was shown a straight red card for a late tackle in the first half of the match on 14 September.
He will now miss Wednesday's game against Villarreal and the home match with Atalanta on 20 October.
The Swiss side were fined after a fan invaded the pitch and for blocking of public passageways.
Meanwhile, Leicester and Napoli have been fined for crowd disturbances during their Europa League match on 16 September.