Blumel signed a four-year contract with HC Sparta Praha on Wednesday.
Blumel's decision to ink such a long contract could mark the end of his NHL career. The 26-year-old winger has tallied two goals, 21 shots and 15 hits in 17 career regular-season games for the Stars and Bruins. He had 21 goals and 52 points in 58 appearances for AHL Providence during the 2025-26 regular season.