5:30pm: Scribner has only been removed from Oakland’s 25-man roster and he remains on the 40-man, Susan Slusser of the San Francisco Chronicle reports (Twitter link). Because it has been more than three years since Scribner’s Major League debut, he must be put on optional assignment waivers in order to be sent to Triple-A. These waivers are revocable, so the A’s can pull Scribner back if another team claimed him.
Scribner has a 1.69 ERA over 5 1/3 relief innings for Oakland this season, and a 3.87 ERA, 2.7 K/BB rate and 6.9 K/9 over 81 1/3 career innings with the Padres and A’s from 2011-14. The 29-year-old was a 28th-round pick for the Diamondbacks in the 2008 draft.