"We were in our backyard one night and I saw my tricycle in a snowbank and I said, 'Oh Dad, can I ride this on the rink?' and he said, 'Why would you want to do that?'" said Jaxen, 11, of the idea he came up with in 2013.
Soon after, a video of Jaxen resurfacing his rink was posted online. It has had more than 13 million views on Facebook.
"I was surprised because it was just one little video," said Jaxen, a Maple Leafs fan from Mississauga, Ontario, whose favorite player is Toronto forward Mitchell Marner. "I didn't think many people would see it but once it got looked at, I was really excited. It was a crazy feeling."
Watch: Jaxen's Youtube Video
After a friend sent Hartnell the video recently, the forward invited Jaxen and his parents, Aaron and Chantel, to the Predators game in Toronto.
"I wish I would have thought about doing that when I was a kid to make sure the ice was smooth on our backyard rink," said Hartnell, who gave Jaxen an autographed game-used stick. "He looked like he was really enjoying himself out there and meeting him really put a smile on our faces."
After meeting with Hartnell, Jaxen got to sit on the ice resurfacer used at Air Canada Centre.