"I was in the stands jumping up and down when he scored against Leeds," said Walker.
"So to play with him, even to sit and eat with him, is an honour. Sometimes he tries to get me some soup and I say to him, 'You can't be doing that, let me get you some soup'."
Twelve-year-old Walker was in the Family Stand when Jagielka lashed it past Leeds keeper Paul Robinson from 35 yards.
"I've never told him he was a hero. I don't want to make his head too big."