Jose Mourinho says he would've quit anyother club for everything he's experienced at Manchester United.

The Mirror says he is so frustrated by what he sees as a lack of backing from Ed Woodward that he is said to have told friends he would have walked out in protest.

Mourinho is still seething over United executive vice-chairman Woodward's failure to land the summer transfer targets he identified months ago.

A source said Mourinho had privately confided that “any other job at any other club and I would have quit", which shows the depth of the 55-year-old's anger at his current predicament.

Mourinho is determined to succeed at United and was handed a vote of confidence by Woodward last January when he signed a new two-year contract extension, amid heightened speculation over his future.