The club added that based on the evidence available to them, they have concluded that the material posted online did not provide a full picture and that Mason did not commit the offences in respect of which he was originally charged.
“That said, as Mason publicly acknowledges today, he has made mistakes which he is taking responsibility for.
“All those involved, including Mason, recognise the difficulties with him recommencing his career at Manchester United.
“It has therefore been mutually agreed that it would be most appropriate for him to do so away from Old Trafford, and we will now work with Mason to achieve that outcome,” the statement added.