The Oakland Athletics announced Wednesday that they have recalled left-hander Kyle Muller from Triple A Las Vegas. Spenser Watkins was optioned back to Triple A to open up a spot on the active roster.
The A’s have recalled left-handed pitcher Kyle Muller and optioned right-handed pitcher Spenser Watkins to Las Vegas.
— Oakland A's Communications (@AthleticsPR) August 16, 2023
Muller was the A’s Opening Day starter and pitched well initially before the wheels came off and he ended back up in Triple A by the end of May.