But the defender's career has stalled and he now faces a humiliating departure in the summer. It's not the first time that Shaw's people have briefed the media with a similar line, but with a manager who doesn't rate him and a high-priced replacement likely, Shaw may not have much of a choice.
Tottenham would appear to be a logical solution, in the context of United being long-term admirers of their first-choice full back Danny Rose, who appeared to be agitating for a transfer away from the North London club last summer.
That talent hasn't just disappeared, but Shaw's confidence certainly has and Mourinho is responsible.
Keown though believes Jose is risking losing the dressing room, particularly with his criticism of left-back Luke Shaw.
Shaw was substituted at half-time in Saturday's 2-0 FA Cup quarter-final win over Brighton & Hove Albion, after which Mourinho explained his decision, per BBC Sport: "Luke, in the first half, every time they came in his corridor, the cross came in and a unsafe situation was coming".
Wilfried Zaha could be heading for Tottenham
He said, "Luke in the first half every time they come in his corridor, the cross was coming and a risky situation was coming so I was not happy with his performance".
"I didn't like the game", said Mourinho. "But it doesn't mitigate the feeling, shared with all of you, that we had the chance to be in the quarter finals and we didn't have a good game last Tuesday".
"But I've said on numerous occasions - when you go to Old Trafford, it's not only what you can do with the ball, you've got to have the mentality of a victor as well and perhaps Jose is not quite seeing that in Luke at this moment in time".
Shaw has understandably struggled since he suffered a horrific double leg fracture in the Champions League against PSV Eindhoven in September 2015.
"The injury is a big thing and he does seem a bit mentally fragile but, be it due to the injury or not, as a manager you've got to find a way to get the best out of him and I don't think Mourinho has done that". As an attacking full-back, the boy had so much going for him. His comments came just a month after signing the youngster. "Jose has been impressed with him and he will be a star".
But the United manager's response to what was, after all, a comfortable victory was an astonishing psychological tactic that may, ultimately, backfire - a point that Mourinho accepted when asked why he had made such a calculated outburst. Mourinho is not that man.