The Portuguese coach is keen to add another goal threat to his side after growing concerned at a reliance on Roberto Soldado – who, despite a solid start to life in England, has not had the most fruitful time in front of goal.
AVB also has Jermain Defoe and Emmanuel Adebayor to call upon, but he is thought to be unconvinced by either.
This has led to speculation that he will delve into the transfer market once it re-opens, with Hernandez thought to be high on his wishlist.
The Mexican has found first-team football hard to come by under new United chief David Moyes, and is rumoured to be ready to move on to get his career back on track.
Despite having spent in excess of £100m over the summer, Villas-Boas is set to receive further financial backing from the club and should be able to meet Chicharito’s £15m valuation.
Hernandez has hit 33 goals in 79 outings for the Red Devils, and Moyes is thought to be keen to keep him at Old Trafford as back up to Robin van Persie and Wayne Rooney.
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