In addition to Jake Arrieta, the O's have cut pitchers Frank Mata, Josh Perrault, and Dennis Sarfate. Infielders Brandon Snyder, Josh Bell, Michael Aubrey, Rhyne Hughes, and Pedro Florimon were also cut along with outfielder Jonathan Tucker.
Sarfate was my only surprise, but remember that he's not on the 40 man roster. That means the competition between Matt Albers, Kam Mickolio, and David Hernandez should heat up for a right handed spot or two in the bullpen. I expect that we will see Arrieta, Snyder, and Bell, the top 3 prospects at their respective positions, later in the season.