OAKLAND -- Right-hander Rich Thompson was claimed off waivers from the Los Angeles Angels earlier Friday and made it to Oakland in time to be available for the series opener with the Cleveland Indians.
Thompson, who will wear No. 54, appeared in two games for the Angels this year, allowing four runs on five hits and a walk in 2 1/3 innings. He is 3-4 with a 4.24 ERA in 81 career appearances, all in relief.
To make room for Thompson, the A's optioned right-hander Neil Wagner to Triple-A Sacramento.
Wagner was recalled by the A's on Tuesday but did not appear in a game with Oakland. He made three relief appearances with Sacramento and was 1-0 with a save, a 5.06 ERA and .273 opponents batting average.