Athletics designated RHP Noah Murdock for assignment.

If the Rule 5 selection passes through waivers unclaimed, he would be returned to the Royals. If another team claims him, then the same rules apply, and he needs to remain on the big league roster for the duration of the season or be returned to the Royals. Murdock posted a 13.24 ERA, 2.71 WHIP and a 21/20 K/BB ratio over 17 innings in 14 appearances with the A’s.