Zito's contract was selected from Triple-A Nashville on Wednesday.

EDGE Analysis

Despite saying previously that they weren't going to call him up, Zito returns to Oakland. The 37-year-old is having a solid year in Triple-A, holding a 3.46 ERA with 91 strikeouts in 138.0 innings. He could make a start against his former teammate Tim Hudson in his final start. It is expected that Zito will retire after the season ends, though there has been no official announcement. He replaces Jesse Chavez on the active roster, who went on the 60-day DL to make room for Zito.