The winger has not played for the Red Devils since the end of August after falling out with manager Erik ten Hag.
It now appears he may never play for the club again as he continues to train on his own.
Sancho has been excluded from United’s 2023/24 squad photo.
Members of the first-team lined up for the picture at their Carrington training base.
However, Sancho was absent from the shoot as he remains exiled from the first-team.
The 23-year-old is banished from first-team areas at Carrington as part of his feud with Ten Hag.
Sancho accused his manager of lying after he was left out of the matchday squad to face Arsenal in September.
Ten Hag had claimed his omission was a result of his poor performances in training, which Sancho denied in a now deleted social media post.
His future at the club remains in doubt following their spat, with Sancho even coming close to leaving before the Saudi Pro League transfer window closed.
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Although a deal failed to materialise, he is said to be open to leaving in January amid reports his representatives have contacted former club Borussia Dortmund.
Sancho has scored 12 goals and provided six assists in 82 appearances for United since his £73million arrival from Dortmund in 2021.
He still has over two years left on his current contract with the club holding the option of a further year.