The A's officially re-signed veteran starting pitcher Brett Anderson Wednesday on a one-year contract, 10 years after his major league debut with the team.
In a corresponding move, pitcher Sean Manaea has been placed on the 60-day DL to start the season.
Susan Slusser of the San Francisco Chronicle reported Monday that the A's and left-hander Anderson had reached an agreement to team up for another season.
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Anderson, 31, went 4-5 with a 4.48 ERA for Oakland last season after signing a minor-league contract in March. He also pitched for the A's from 2009 to 2013, amassing a 26-29 record over 84 games (73 starts), over which he posted a 3.81 ERA and 1.28 WHIP.
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With Anderson joining a rotation that already includes Mike Fiers and Marco Estrada, Oakland has added considerable experience to their pitching staff heading into the new season.