3. Zemgus Girgensons
For my last candidate, it's Zemgus Girgensons. While he is currently one of the assistant captains, he is more than deserving of having a letter on his jersey as well. Girgensons has been with the Sabres for his entire career. From the good times and mostly the bad moments, he's been through it all with Buffalo.
He is the longest-tenured Sabre and while he is a depth player, there is no denying he is one of the hardest-working players on the roster. Girgensons is set to be a free agent after this season but let's pretend the Sabres do bring him back next season. I think it's safe to say that he will be one of the players with the A.
There is a route for Buffalo to go down where they can have three assistant captains and no captain. I don't see that happening but I think these three players should be considered as alternate captains for Buffalo next season and in the future.