A return to Southampton is on the cards for the 22-year-old left back who recently made his unhappiness clear in the media.
Shaw, a former England international who still harbours ambitions of a recall to Gareth Southgate’s squad, is determined to kickstart his career.
United, aware that Mourinho is unimpressed with the left-back’s continual battle with his weight, are ready to consider a January loan deal to relieve the pressure of the situation.
With Marcos Rojo set to return, Shaw’s chances of first team football diminish further. Former club Southampton are keenest of several suitors. A permanent deal is likely to see United take a considerable loss on the £30m they paid for him in 2014.
A source at United is quoted as claiming Shaw has worked hard on his fitness since the summer but has only featured in the Carabao Cup ties against Burton Albion and Swansea City.
Southampton face losing Ryan Bertrand to Manchester City with the current Premier League leaders looking to sign cover for injured summer signing Bernard Mendy.