Sir Alex Ferguson has set Hernandez a 30 goal haul to reach as United bid to successfully defend their crown.
But Hernandez warned: "I have never set myself targets, I simply play football.
"My goals are the consequence of what my team-mates do. We are just the lucky ones who work closer to the goal and get the headlines.
"Probably people are expecting more from me this season but I don't feel under pressure by it.
"I am a very lucky guy to be at the best club in the world. I just want to keep improving and learning about the Premier League.
"Whether it is one minute or 90 I will be ready to help United to keep winning trophies."