The Guardian has contacted the club to clarify whether Wan-Bissaka had permission to travel to Dubai and whether, even though the bulk of the squad are expected back on Wednesday, the defender was among those given extra time to recuperate.
Wan-Bissaka has posted pictures of himself undergoing fitness sessions in Dubai, which is on the list of places from which people returning to the UK have to self-isolate for 14 days.
Dubai was on that list before United’s final match, the Europa League semi-final defeat by Sevilla on 16 August.
Ole Gunnar Solskjær has encouraged his players to take as refreshing a break as possible given United’s 2019-20 season was a year and a week long because of coronavirus. United open the new campaign at home to Crystal Palace on 19 September.