The Athletics have designated 30-year-old catcher and designated hitter Luke Montz for assignment, the team announced on Twitter. That move created 40-man roster space for the addition of young outfielder Michael Choice.
Montz, who has seen thirty uneventful plate appearances for the A's this season, has spent most of the last six seasons in the upper minors. He possesses a .246/.352/.541 line in 145 plate appearances at Triple-A, and did more or less the same while in the Marlins' system during 2011-2012.