Manchester United players Diogo Dalot and Marcus Rashford could line up on the right flank against Young Boys in the UEFA Champions League tonight.
Antonio Valencia stayed at home for two of United's group stage away days last season so it was hardly a surprise that he did not board the flight on Tuesday morning.
Diogo Dalot has only made two appearances since undergoing knee surgery in May and both of those were for United's reserves.
Particularly if it is Marcus Rashford who starts in front of him on the right wing; the pair have a combined age of just 39.
Chris Smalling revealed United were 'travelling over a little earlier to make sure we train on that pitch so we can get used to it'.
Luke Shaw and Marcus Rashford are already confirmed starters and Nemanja Matic will surely play given his own domestic ban.
Mourinho said it was too early to talk about United's Champions League chances on Tuesday, but he admitted getting to the quarter-finals is when you can 'smell that the distance is not very far'.