The spelling comes from the script:

"I was hunting Sabre bear on Kang's Summit. Little did I know that I was being stalked as well"

Excelsior 11:26, 12 Jun 2005 (UTC)

This shows otherwise. — Morder (talk) 10:39, October 20, 2009 (UTC)
Actually, both are correct. I was just about to restore it. Purgatory's Shadow did have sabre but since saber is proper american... — Morder (talk) 10:42, October 20, 2009 (UTC)