Athletics rookie right-hander Aaron Brooks has been called up and will start Saturday's game against the Diamondbacks. Brooks has made four appearances (three starts) since coming over from the Royals in a deal right before the July 31 trade deadline.
His last start came back on August 12, when he was rocked for eight runs over 1 2/3 innings. He pitched in relief two days later and was then sent down to Triple-A.
To clear room on the roster, infielder Max Muncy was optioned to Triple-A Nashville.