Potential No. 1 Pick in N.H.L. Draft Is Only No. 3 Among His Brothers

Like many Canadians, the brothers Max, Griffin and Sam Reinhart grew up playing hockey.

Their competitive nature came out during mini-stick hockey games at the family home in Vancouver, British Columbia, resulting in broken windows as the boys simulated playing together in the N.H.L., where their father, Paul, spent 11 seasons as a defenseman.

“I think every kid at some point plays mini-stick hockey with the two nets, and then play against each other and usually have a friend or something over to make it two-on-two or play one-on-one with one goalie,” Griffin, 20, said. “It’s a lot of fun, and I think it’s something, as you grow up, you obviously remember.”

Sam, 18, is set to become the third Reinhart selected in five drafts on Friday, after Max (64th overall in 2010 by the Calgary Flames) and Griffin (fourth overall in 2012 by the Islanders).

“I’m pretty excited for that,” Sam said. “Saw it firsthand when Griffin was able to do that in Pittsburgh, and that was probably the first time I really started to visualize that.”

Playing for the Kootenay Ice, Sam finished the 2013-14 regular season fifth in the Western Hockey League in points with 105 in 60 games. He added 23 points in 13 playoff games and won the league’s Player of the Year award.