The Mexican forward was on loan at Real Madrid last season and impressed in his brief spell there despite having to settle for a role on the bench.
Hernandez is exactly the sort of player that would thrive at West Ham. He showcases a fantastic ability of being in the right place at the right time and if he is given the right service, he has the potential to score goals on a regular basis. The prospect of a player like Hernandez linking up with Diafra Sakho would surely produce goals as well as excellent movement and pace in attack.
It looks as if Manchester United are not too keen to sell at the moment due to Robin van Persie leaving the club but that could all change if Manchester United dip into the market for a new centre-forward.
Signing rating: 8/10