Mets designate Kevin Herget for assignment one day after selecting his contract

What happened

The New York Mets designated right-hander Kevin Herget for assignment one day after selecting his contract, per Anthony DiComo of MLB.com — a brisk piece of roster housekeeping that doubled as a reminder of how efficiently a bullpen arm can cycle through a 40-man roster without ever unpacking.

In the same cluster of moves, the Mets recalled right-hander Robert Stock to start Sunday's game against the Miami Marlins, optioned right-hander Jonathan Pintaro to Triple-A Syracuse, and selected right-hander Bryce Conley to the 40-man roster. Conley's addition is what created the opening that Herget now vacates.

Why it matters

The mechanics here are worth a moment. Herget was brought up specifically for a single appearance — he retired the Marlins in order in the top of the ninth inning in what turned out to be a 6-2 New York loss. That's the job: come in, do the work, make room for the next arm. Pintaro, who threw 43 pitches across two innings of relief ahead of Herget in that same game, was optioned for similar reasons. High pitch counts in short outings have a way of accelerating these decisions.

DiComo's report describes this as typical of how these moves operate: a fresh arm is brought up for a lone appearance, and once that purpose is served, the roster turns over to accommodate the next need. Herget's exit is not a verdict on his ability so much as a function of how modern bullpen management interacts with the 40-man roster's finite real estate.

For Herget specifically, the timeline is compact even by the standards of this kind of churn. He finished the 2025 season in the Mets' system, rejoined the organization on a minor-league deal in December, spent the early portion of this season on the minor-league injured list, and then — after all of that — got one inning in the big leagues before the roster moved on. Under general league rules, a player designated for assignment must be traded, released, or placed on waivers within seven days, so the next chapter of Herget's 2026 will become clearer in short order.

Conley's addition to the 40-man roster is the other side of this transaction. Being placed on the 40-man is the prerequisite for any future call-up, so the move signals that the organization is positioning Conley for potential big-league availability. DiComo's report does not specify a timetable or role for him beyond the roster addition itself.

Where the club stands

### Is this the kind of move a contender makes?

Not exactly — and the Mets' current standing makes that plain. New York enters Sunday at 74-88 (.457), sitting fifth in the NL East and 20 games back in the division. The club has already been eliminated from both the division race and the Wild Card race, and ranks 10th in the Wild Card at 14.0 relative to the cut line. They arrive at this game on a one-game losing streak.

None of that context diminishes the operational logic of the move. Roster management doesn't pause for the standings, and a team playing out a difficult season still has to field a functional bullpen every day. If anything, the late-summer calendar creates more opportunity for organizational depth to get evaluated — which is precisely what Conley's 40-man addition suggests the front office has in mind.

Sunday's game at Citi Field features Robert Stock, recalled specifically to start, against Miami's Sandy Alcantara. After that, the Mets travel to Progressive Field to face the Cleveland Guardians, with Sean Manaea lined up for Tuesday against Joey Cantillo and Christian Scott scheduled for Wednesday against Tanner Bibee. Three games in four days against two different opponents means the bullpen will keep turning, and the moves made this weekend are already oriented toward that workload.

The 74-88 record and fifth-place standing frame the environment in which this roster churn is happening — a club deep in a difficult season, working through its depth and making decisions with an eye toward what the organization looks like going forward.

What we don't know yet

DiComo's report does not specify what happens next for Herget beyond the designation itself. Whether he clears waivers, is traded, or is released will emerge over the coming days under the standard seven-day window that applies to any designation for assignment. His minor-league deal from December and his time on the minor-league injured list earlier this season are part of the record, but his next destination is not yet part of the story.

Conley's role going forward is similarly open. The 40-man addition is reported by DiComo; what it leads to in terms of a call-up, a timeline, or a specific role is not addressed in the report.

Pintaro's option to Syracuse is reported as a workload-driven decision following his 43-pitch outing, but the report does not indicate how long he is expected to remain there or what would trigger a return.

What to watch

The most immediate thread is Herget's seven-day window. If he clears waivers, the Mets would have the option to outright him to the minors; if he is claimed, he moves on to another organization. Either way, the resolution comes quickly.

Conley is the longer-running watch item. His placement on the 40-man roster is the first step toward big-league availability, and with the Mets playing out a season that has already been mathematically resolved in both the division and Wild Card races, there is organizational incentive to see what their depth looks like under game conditions. Whether that means a call-up in the near term is not something DiComo's report addresses — but the roster move itself is the kind of signal worth noting.

Stock's start on Sunday is the most immediate on-field consequence of all of this. He was recalled specifically for this game, per DiComo, which means his performance — and the bullpen situation that follows him — will shape at least the next round of decisions in what has become a very busy stretch of Mets roster activity.