The Daily Star says the Mexico striker - nicknamed Little Pea - has failed to impress manager David Moyes this season.
Moyes has handed Hernandez just FOUR Premier League starts.
He has scored twice but the United boss isn't a fan of the 25-year-old.
Hernandez, who has previously attracted interest from Tottenham, wants first-team football and is understood to be frustrated at his lack of opportunities.
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