Sanchez was given a rare start in attack against Huddersfield by Ole Gunnar Solskjaer, his first in 12 games, but he failed to take the chance to impress in the disappointing 1-1 draw, which ended the club’s hopes of Champions League football.
The 30-year-old Chilean did not even play the full match, limping off in the 54th minute to be replaced by Tahith Chong.
It has been a nightmare spell at United for the former Arsenal player, who moved to Old Trafford in a swap deal with Henrikh Mkhitaryan in January 2018.
He has scored just three times in the Premier League, despite collecting wages of around £500,000-a-week.
In his Times column on Monday, Tony Cascarino said Sanchez has become a huge burden for United, likening his situation to Jack Rodwell’s at Sunderland.
Rodwell joined Sunderland from Manchester City for £10million in 2014 on a huge wage packet but endured a disastrous spell, which finally ended last year after he agreed to cancel his contract.