The young forward's grandfather Tomas Balcazar scored the first goal against France in 1954 World Cup, way before Hernandez was born, but the 22-year-old knew all about it.
"Yes, I just remembered that now in the dressing room. I hope I can speak to him soon," the beaming striker told a news conference after his country's 2-0 win over France.
Hernandez has had a whirlwind few months after gaining selection for the national side, completing a transfer to Manchester United and now scoring in a World Cup.
But he displayed down-to-earth qualities as he faced the media after the game.
"Thanks to my family, I am what I am on and off the pitch," he said.
Hernandez's father also played for Mexico in the 1986 World Cup with current coach Javier Aguirre.
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