The Athletics will turn to right-handed pitcher Paul Blackburn to snap their 11-game losing streak.
Blackburn, who missed the first two months of the season due to a right middle fingernail avulsion, officially was activated off the 15-day injured list Monday. He will make his first appearance since Aug. 4 on Monday night in the series opener against the Atlanta Braves.
To make room on the roster, the A's designated first baseman Jesus Aguilar for assignment.
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Blackburn represented the A’s at the 2022 MLB All-Star Game at Dodger Stadium after posting a 6-5 record, 3.62 ERA and 1.196 WHIP over his first 18 starts. He only made four appearances after the All-Star Game due to his fingernail avulsion.
Aguilar, who signed a one-year contract worth $3 million in the offseason, didn't put together the bounce-back offensive season he was hoping for. Aguilar batted .221/.281/.385 with five home runs and 31 strikeouts in 36 games with Oakland.
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The 32-year-old hit .100 (3 for 30) with 10 strikeouts in 13 games in May.
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Additionally, Oakland recalled infielder Jonah Bride from Triple-A Las Vegas and optioned right-handed pitcher Garrett Acton there. Bride will make his season debut Monday night against the Braves, batting ninth and playing third base.