Pina was released by the A's on Saturday.

Oakland reinstated Pina (wrist) from the 10-day injured list Monday and designated him for assignment.

Pina (wrist) started at catcher and played a full nine innings in Triple-A Las Vegas' win over Sugar Land on Sunday, going 2-for-4 with two walks and three runs.

Pina (wrist) started at catcher and played seven innings in Triple-A Las Vegas' loss to Sugar Land on Friday, going 0-for-3.

Pina (wrist), who's currently on a rehab assignment with Triple-A Las Vegas, isn't expected to be activated until he's able to catch a full nine innings on back-to-back days, the team's official site reports.

Pina (wrist) moved his rehab assignment to Triple-A Las Vegas on Tuesday and started at catcher, going 1-for-1 with a walk and two runs before being pinch hit for in the fifth inning during the Aviators' win over Sugar Land.

Pina was placed on the 10-day injured list with a wrist injury Friday.

Pina was removed from Sunday's loss to the Red Sox in the seventh inning due to ongoing issues with his left wrist, the team's official site reports.

Pina is 0-for-4 with a strikeout over two games since being activated from the 60-day injured list Tuesday.

Pina (wrist) was activated from the 60-day injured list Tuesday.