Isak Rosén has long been Article in SportbladetRead the sourceArticle in HockeysverigeRead the sourceArticle in HockeynewsRead the source. Ahead of the 2021 NHL draft, Sportbladet's Felix Pettersson highlighted Article in SportbladetRead the source. Article in HockeysverigeRead the sourceArticle in Leksands IFRead the source grew up in Leksand, where his family moved shortly after his birth, and played for Leksands IF throughout his childhood. In an April Article in HockeysverigeRead the source interview with Hockeysverige, he recalled joining his older brother Gabriel’s hockey practices when he was around 3–4 years old. Article in HockeysverigeRead the source.
Article in HockeysverigeRead the source. He also credited coaches Article in HockeysverigeRead the source and Per Bäcklin with encouraging him and contributing to his development.
Article in Leksands IFRead the source in 2019, Rosén described the move from under-16 to under-18 hockey: the game was faster and more structured. Article in Leksands IFRead the source. The club magazine also described his friendship with Article in Leksands IFRead the source, whom he had played alongside since childhood.
Article in Rochester AmericansRead the source 2022, Rosén told Rochester Americans that the opportunities in Buffalo were a reason to try developing in North America. In a September Article in Rochester AmericansRead the source interview with the same club, he described how much he had enjoyed playing with Jiri Kulich in Rochester. After Kulich’s Article in Rochester AmericansRead the source.
Hockey was not his only childhood sport: in the Article in HockeysverigeRead the source interview, Rosén recalled also playing football in Leksand and floorball, although he preferred hockey. Football appeared again in Article in Rochester AmericansRead the source 2022 player profile, where he named it as his favorite sport besides hockey. Article in Rochester AmericansRead the source.