By the time he was in his teens, Marner's gifted mixture of mind and motor had caught the attention of Hunter, GM of London of the Ontario Hockey League. Marner was playing for the Don Mills Flyers minor midgets of the Greater Toronto Hockey League.
Hunter went to Toronto to see the kid play. It didn't go as planned.
"I wasn't good," Marner said.
No matter. Hunter saw something in Marner that wowed him. He drafted him No. 19 for London in the 2013 OHL Draft. Two years later, he was picked No. 4 in the 2015 NHL Draft by the Maple Leafs at the urging of Hunter, Toronto's assistant GM at the time.
"I knew his makeup and I knew his desire," Hunter said.
Marner also had a driving urge to learn. Dale Hunter, Mark's brother who is the London coach, would often arbitrarily quiz his players about all things hockey during team meetings. Marner answered so many questions correctly, the coach finally asked him to let some of his teammates try to get them right.
Such is the forward's competitive nature.
"We won a Memorial Cup (in 2016)," Mark Hunter said. "He'll keep pushing to win a Stanley Cup, because that's what he's all about."