Does Hernandez have the ability of Messi, Ronaldo, or Rooney? It is a laughable claim.
By technically, I mean his technique. His first touch is very often poor when he comes to receive the ball. He does not have outstanding close control. I don't think it is possible for these things to improve much. Players either have this or they do not. Hernandez is not a player with great technique. He still has other fantastic attributes, of course.
His balance and strength are also unimpressive, and he is easily knocked off the ball. These things, however, will surely improve as he continues to adapt to the English game.
Like I have said numerous times, I really do like Hernandez and what he does bring to the side, but it is not right to overrate his ability.