On the ice, though, the Lindgren boys channelled that competitive spirit into besting their opponents, and that ultimately helped to pave the way for all three of them to move their respective hockey careers forward, with Charlie leading the charge.
A standout between the pipes at St. Cloud State University, the eldest of the Lindgren clan signed a free-agent contract with the Canadiens following his Junior campaign and excelled in his first full year in the pros this past season, posting a 24-18-6 record with the AHL's St. John's IceCaps. He also won both of his starts during a late-season call-up to the big club, topping both the Florida Panthers and Detroit Red Wings in early April.
Like Charlie, 20-year-old Andrew is a goaltender, too. After a two-year stint in the North American Hockey League, he elected to ply his trade for Saint John's University in the Minnesota Intercollegiate Athletic Conference where he completed his freshman season in 2016-17.
For his part, 19-year-old Ryan, a defenseman, is set to become the first sophomore alternate captain at the University of Minnesota in eight years next season. He was selected 49th overall by the Boston Bruins at the 2016 NHL Entry Draft in Buffalo, and helped Team USA claim a gold medal at the 2017 IIHF World Junior Hockey Championship in Montreal.
These days, sibling rivalry has given way to heartfelt mutual support.
"We've got a text messaging group, a Snapchat group and we also use the Houseparty app. We've got a couple of groups going at the same time. With technology nowadays, it's just so easy to stay in touch and connect no matter where we are. Hockey's always a topic of conversation, but we also talk about what's going on at school and how they're progressing," said Charlie, who can easily relate to his brothers' collegiate experience, having gone through it himself. "We'll try to cover a little bit of everything when we talk, and that's the best part about it."
"Still, there are times when you definitely like to give each other a hard time. It's pretty much half-and-half. That's just being brothers and having fun," added Charlie. "Other times, you need to be supportive and help out. Life's not always perfect, so we'll do a bit of both. But, we do talk on a daily basis and we're extremely close."
One of the more memorable hockey moments the brothers shared in recent years came last June when Ryan's name was called by the Bruins' brass at the KeyBank Center.
"I was very proud of him. That was the first reaction. The draft was actually really stressful to watch. When he was picked, the whole family was super excited. Then, pretty early on, we're like - 'The Canadiens-Bruins rivalry is one of the biggest in hockey.' Hopefully, down the road we'll get to witness that matchup with us first-hand," said Charlie, on the prospect of facing off against his youngest brother in the NHL ranks at some point in the future. "It was absolutely amazing seeing him achieve his goal, just knowing the hard work he put in. It was very well-deserved. I think he has a very bright career ahead of him."