Walker says he is proud of his fellow Yorkshireman.
“Obviously with H, I've seen him growing up," he told Talksport.
“I feel like a proud dad sometimes when he puts the shirt on and does what he's doing.
“To get a goal has capped off his tournament so far because I think he's been excellent.
“Coming into a World Cup situation like this and not having many caps, it shows his maturity on the field."