That's not to say it wasn't difficult to depart Notre Dame, an institution that remains very special to Bjork, who has deep Fighting Irish roots. The Wisconsin native's father Kirt - like his son a 100-point scorer at Notre Dame - mother Patricia, and two older sisters, Brinya and Keali, are South Bend alums.
"I really like Notre Dame - love my coaches and teammates and everything there, so it was a really tough decision," said Bjork, who made a promise to his mom to finish his marketing degree by taking summer and online classes. "It kind of took a long time to think about and I wanted to be 100 percent sure on it because, obviously, it's life changing.
"And I think once I decided that, I was very excited...obviously, any opportunity to play professional hockey is extremely tempting."
But Bjork, who made the final call to chase his dream following the 2017 IIHF World Championship, knows it will not be easy to gain a spot on Boston's roster. The soon-to-be 21-year-old will be competing against fellow youngsters like Peter Cehlarik, Jake DeBrusk, and Danton Heinen, all of whom have at least a year of professional hockey under their belts. And there is, of course, always the possibility that Sweeney brings in a veteran or two to stiffen the competition.
"I think I'm just trying to do the best I can and show how hard I can compete," said Bjork, who led Notre Dame in points (52), goals (21), and assists (31) last season, while helping Notre Dame to an appearance in the Frozen Four.
"I'm excited to see where I'm at compared to these guys. Obviously, there's a ton of great players, especially great forwards here in Boston. It'll be an exciting experience for me and I know especially as a younger player, it might take time.
"So, I understand that. A lot of guys told me at the World Championship to was that keeping a level head is extremely important in pro hockey."