Originally Posted by chicoruiz
Firpo Marberry- First really good pitcher to spend most of his career as a reliever. When he retired, he had twice as many relief appearances as the guy in second place. Once gave up four consecutive triples (Bucky Walters hit the fourth).
He became well-known around the majors for the scowl he seemed to constantly have on his face that tended to intimidate batters. His appearance and demeanor reminded observers of boxer Luis Firpo, thus the moniker.