Bruins Prospect Mason Langenbrunner Retires

By Josh Erickson | at July 11, 2026 4:01 pm The Bruins had until Aug. 15 to sign 2020 fifth-round pick Mason Langenbrunner to his entry-level contract after he finished his senior season at Harvard this past spring. However, he won’t be signing with Boston – or anywhere else, for that matter. The 23-year-old defenseman is hanging up the skates without ever playing a professional game, Kevin Paul Dupont of the Boston Globe wrote Saturday. Langenbrunner, the son of longtime NHLer and now-former Bruins assistant general manager Jamie Langenbrunner, captained the Crimson last season to conclude his collegiate career. He…