The youngster, who enjoyed a sensational breakthrough campaign under Louis van Gaal last season, has only featured six times for the Championship side, with his last appearance dating back to early November.
Lambert explained last month that he hadn’t fielded the youngster due to his side’s demand for more experienced, steely figures in their fight against relegation.
And according to the Telegraph‘s James Ducker, Man United have grown exasperated at the Englishman’s predicament and will bring him back to Old Trafford in the coming weeks.
On reflection, Borthwick-Jackson’s calm, almost languid manner at the back was always going to be incompatible with a Championship side battling relegation. And yet, such an approach serves as the reason behind why the 19-year-old always looks so comfortable on the ball, seemingly unfazed by any magnitude of pressure.
With this in mind the Championship, somewhat ironically, will always be harder for Borthwick-Jackson. He has already demonstrated a capacity for dominating opponents in the Premier League, impressing many with his calm, controlled nature at left-back and superb crossing ability, and United fans will hope to see him feature under Mourinho in the coming months.