Head coach Marco Sturm said Wednesday that Hagens seized an opportunity to shine during rookie camp, Joe Haggerty of Boston Sports Journal reports.
Sturm said Hagens' participation in rookie camp gave the young forward a head start going into training camp. The 19-year-old Hagens worked hard to prepare for the likelihood of playing regularly in the NHL in 2026-27. Hagens made a pair of regular-season appearances with Boston last year, recording an assist, two PIM and a hit while averaging 14:33 of ice time per game. He spent most of 2025-26 at Boston College, where he recorded 23 goals, 24 assists and 24 PIM across 34 outings.