Hernandez’s double handed United their first away win of the Premier League season.
Hernandez told Sky Sports: “We were very happy with the result. We know about Stoke’s style and are delighted.
“I’m working a lot because I want to stay here a long time and win a lot of tournaments.”
Hernandez’s first goal was an impressive header in the first half.
The Mexican striker said of the goal: “I jumped and saw the ball behind me and tried to head it towards the goal.
“I don’t remember doing it in training. It’s a good goal but the most important thing is the result. Here there are no heroes, it is about the team.
“My team-mates trust in me and all the staff too. It’s an unbelievable opportunity for me to play with the biggest team in the world.”