The Athletics recalled Kolarek from their alternate training site Sunday.

Oakland sent Kolarek to the alternate site less than a week ago, but he'll be able to rejoin the big club earlier than anticipated after Jesus Luzardo (hand) was surprisingly placed on the 10-day injured list Sunday. Mike Fiers is expected to move into the rotation for the duration of Luzardo's absence, while Kolarek will likely fill a low-leverage role out of the Oakland bullpen.

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