Oakland Athletics general manager Derek Dole has flagged a pressing need for a reliable closer as the July 31 trade deadline approaches, according to a report published on May 15, 2026. The A’s sit atop the AL West but lack a defined ninth‑inning arm after trading Mason Miller to San Diego last season.
Analysts warn the bullpen’s uncertainty could jeopardize the club’s division lead if the front office does not secure a proven closer before the deadline. The situation is especially ironic because Miller was the league’s top reliever when the Athletics dealt him away in 2025.
What does recent history reveal about the A’s bullpen?
Since the 2025 trade deadline, the Athletics have relied on a patchwork of setup men and occasional starters to finish games, a strategy that has yielded mixed results. Bleacher Report’s Kerry Miller identified the closer role as the top priority for the team this season, noting that without a dedicated finisher the A’s risk slipping in the tight AL West race.
Key details on the current closer dilemma
The A’s recorded a collective bullpen ERA of 4.38 through the first 55 games, ranking seventh in the league, while their save conversion rate sits at 68%, well below the AL average of 81%. Oakland’s lack of a true closer has forced manager Mark Kotsay to experiment with left‑handed reliever Liam O’Connor in high‑leverage situations, a move that has produced a 2.90 FIP but limited innings.
Former A’s closer Mason Miller posted a 2.45 ERA and 38 saves in 2024 before his trade, underscoring the gap left in the bullpen. Looking at the tape, the A’s struggle to lock down the ninth inning has cost them three games by a single run since May 1, a pattern that could prove costly in a division where the Angels sit just two games back.
Key Developments
- The Athletics traded Mason Miller to the San Diego Padres at the 2025 deadline, losing a pitcher who logged 38 saves and a 2.45 ERA that season.
- Kerry Miller of Bleacher Report listed the closer slot as the Athletics’ #1 trade‑deadline target in his preseason roundup.
- Oakland’s bullpen ERA of 4.38 ranks seventh in MLB, highlighting the statistical need for improvement.
- Despite the deficit, the A’s remain atop the AL West, holding a 44‑23 record as of May 15.
- Front‑office brass have reportedly explored options including a trade for Seattle’s veteran closer, but no deal has materialized.
Impact and what’s next for the Athletics
Securing a reliable closer could solidify Oakland’s hold on the division and give the team a strategic edge in late‑season matchups. If the A’s fail to act, they may face a sprint to the postseason with a vulnerable bullpen, a scenario that could force a mid‑season overhaul of the pitching staff.
Per Sporting News, the front office’s next move will likely involve a trade package that includes prospects and cash considerations to entice a proven closer before the deadline.
Who could the Oakland Athletics acquire to fill the closer role?
Potential targets include Seattle’s veteran closer who posted a 2.70 ERA last season and is rumored to be trade‑eligible, as well as a left‑handed reliever from the Toronto Blue Jays who recorded 22 saves in 2025. Oakland has also been linked to a former Yankees setup man who excels in high‑leverage spots.
When is the 2026 MLB trade deadline?
The trade deadline for the 2026 season is set for July 31, giving teams a narrow window to finalize deals before the roster freeze.
How did the trade of Mason Miller affect the Athletics historically?
After losing Miller, the A’s bullpen ERA rose from 3.62 in 2024 to 4.38 in 2026, and the team’s save conversion dropped by 13 points, contributing to a tighter division race. The move also reduced the team’s swing‑and‑miss rate in the ninth inning.
