Mason Geertsen Stats & Bio | Sabres Left Wing

About Mason Geertsen

Mason Geertsen is a left wing for the Buffalo Sabres, wearing jersey number 55 and bringing an imposing physical presence to the ice at 6'4" and 205 pounds. Born on April 19, 1995, in Drayton Valley, Alberta, Canada, Geertsen developed his game through the ranks of Canadian hockey without pursuing a collegiate path, instead dedicating himself entirely to the professional hockey route from an early age. Known for his physicality and willingness to protect teammates, Geertsen exemplifies the hard-nosed style of play that earns respect in locker rooms across the league. His combination of size, toughness, and determination has allowed him to carve out a role at the NHL level. Geertsen continues to be a valued presence within the Sabres organization, contributing the grit and tenacity that every competitive team requires.

Updated: Mar 9, 2026