With Kyle Muller and Ken Waldichuk already in Oakland, it looks like the Athletics are set to continue the youth movement in their starting rotation with possibly the biggest name yet. Righty Mason Miller – the team's No. 3 prospect, per MLB Pipeline, with a fastball that sits around 100 mph – is reportedly getting the call up from Triple-A Las Vegas to make his first MLB start on Wednesday against the Chicago Cubs.
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