The 23-year-old admits he owes Ferguson a ‘great debt’ for helping his career.
Hernandez said in The Sun: “I’m very motivated after a great season with United.
“From now on I’ll owe a great debt to Sir Alex for bringing me to Europe. My dream has not changed.
“I want to win many titles to give back to the team that opened the doors for me.”
Hernandez has recently been linked with a multi-million pound move to Real Madrid.