The A's are bringing back an important piece to their bullpen one day after non-tendering their former closer.
The A's and left-handed reliever Jake Diekman have agreed to a two-year contract with a club option, the team announced on Tuesday.
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SIGN UP HERE ESPN's Jeff Passan first reported the news. Diekman reportedly will earn a guaranteed $7.5 million.
The A's acquired the 32-year-old from the Royals on July 27 for two minor leaguers. Diekman went 1-1 with a 4.43 ERA in 28 appearances out of the bullpen for Oakland.
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Between the A's and Royals, he had a 4.65 ERA over in 76 games out of the bullpen.
Diekman struck out 21 batters in 20 1/3 innings for the A's, but he also walked 16 batters.