Wayne Rooney will be allowed to leave Manchester United in this transfer window if he moves abroad.
But a lack of interest from any foreign club makes it virtually certain he will be going nowhere.
United have ruled out selling to Chelsea, whom they face on Monday.
A senior source close to Old Trafford insisted: 'United just would not sell Rooney to Chelsea - not in a million years.'
Contrary to United's claims that Rooney cannot leave, they remain open to offers before the window closes in eight days.
But no big-hitters in Europe want him.
Mourinho said Chelsea will wait until after Monday's showdown to make a third approach for Rooney.
Chelsea have seen two offers for Rooney rebuffed by United, who insist the England striker is not for sale.
Waiting game: Chelsea manager Jose Mourinho
Mourinho will test that resolve, but not until after the trip to Old Trafford.
'I don't want Chelsea to do it before we go there,' said Mourinho, following Chelsea's 2-1 defeat of Aston Villa on Wednesday.
'Everybody in the club, in the board, they agree with me. They share that opinion.
'I think this period, by the ethical point of view, is a period where we're going to be quiet.'
The transfer window closes on September 2, so Mourinho and Chelsea may bide their time over Rooney.