Erik ten Hag has warned packed schedules make injuries inevitable for overloaded players as Manchester United gear up for their Europa League opener in the revamped format.
Casemiro included in Manchester United's Europa League squad amid transfer rumours linking him to Turkey.
Manchester United were handed a reunion with their former manager Jose Mourinho at the hybrid draw of the new look Europa League in Monaco.
Francis Amuzu's crucial goal secured RSC Anderlecht a 1-0 win over Dinamo Minsk, confirming their place in the Europa League group stage.
Chelsea's play-off round opponent for the group phase in the Europa Conference League will be either Braga or Servette.
Bayer Leverkusen's remarkable 51-game unbeaten streak came to an abrupt halt in the Europa League final as Atalanta claimed a resounding 3-0 victory in Dublin.