The Oakland Athletics are reportedly promoting one of their top pitching prospects to the big league club, bringing left-hander Mason Miller up to join the team tomorrow:
The A’s are planning to promote pitching prospect Mason Miller to their major-league roster, The Chronicle has learned. It sounds like Miller is scheduled to join the team today and could start tomorrow against the Cubs.
— Matt Kawahara (@matthewkawahara) April 18, 2023
It’s an aggressive promotion after Miller only pitched one game for Las Vegas. The 21-year-old has skyrocketed up through the minor leagues thanks to a fastball that consistently breaks the 100 MPH mark and a devastating slider that baffles hitters.