It seemed like things were headed this way when the Oakland Athletics scratched Mason Miller from his scheduled start a few days ago due to forearm tightness, and sure enough, the top prospect will now be out for at least a couple of weeks:
A's have placed RHP Mason Miller on the 15-day injured list, retroactive to May 8 with tightness in his right forearm.
– Jessica Kleinschmidt (@KleinschmidtJD) May 11, 2023