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Mets Place Reed Garrett On IL Due To Elbow Inflammation

By Darragh McDonald | August 25, 2025 at 2:45pm CDT

The Mets announced today that right-hander Reed Garrett has been placed on the 15-day injured list due to right elbow inflammation, retroactive to August 23rd. They have selected left-hander José Castillo to take Garrett’s place on the active roster. Righty Frankie Montas has been transferred to the 60-day IL to open a 40-man spot.

Garrett, 32, has been a key part of the Mets bullpen for about two years now. He broke out with a strong performance in 2024, tossing 57 1/3 innings with a 3.77 earned run average. His 12.1% walk rate was high but he struck out 33.6% of batters faced and got grounders on 44.3% of balls in play. He moved up the club’s pecking order, earning four saves and 14 holds.

He has largely kept that kind of performance going here in 2025. He has thrown another 52 1/3 innings with a 3.61 ERA, 28.3% strikeout rate, 11% walk rate and 39.1% ground ball rate. He has added another three saves and 20 more holds.

To this point, the Mets haven’t provided any details about his injury or how long they expect him to be out of action, but it’s a concerning development regardless. It’s always somewhat worrisome when a pitcher’s throwing elbow isn’t 100%. For the Mets, they have been hit hard by the injury bug this year, with a number of relievers requiring season-ending surgeries in the first half. The club bolstered the group ahead of the deadline by acquiring Ryan Helsley, Tyler Rogers and Gregory Soto.

Despite adding those reinforcements, the club has been struggling this summer. They have gone 7-14 in the month of August and are barely clinging to a playoff spot. They are holding the third and final Wild Card slot in the National League but are just 1.5 games ahead of the Reds.

Part of that is due to Garrett himself. He had a 2.87 ERA in the first half but that has been up to 5.52 so far in the second half. A lot of that seems to be luck. He had a 25.5% strikeout rate and 12.4% walk rate in the first half, with those figures improving to 36.2% and 6.9% respectively in the second half. However, his strand rate went from a fairly average 74.2% to 51% while his home run to fly ball rate went from 5.9% to 27.3%. Though his ERA almost doubled in the second half, his FIP had a far more modest jump from 3.22 to 3.73 while his SIERA actually made a significant improvement, going from 3.92 to 2.16.

Even if the recent struggles aren’t entirely due to misfortunate, the Mets surely don’t want to be losing more pitchers to the injured list, especially after the deadline when it’s harder to find external solutions. For Garrett personally, it’s also less than ideal as he’s just about to qualify for arbitration for the first time.

For now, the Mets will add Castillo to the roster. He started the season with the Diamondbacks but was designated for assignment in May. The Mets sent some cash to Arizona to bring him aboard. Since then, he has bounced on and off the roster. They have twice designated him for assignment and sent him through waivers. Each time, he has accepted an assignment to Triple-A Syracuse and later been added back to the roster.

Overall, he has thrown 18 2/3 innings in the big leagues this year with a 5.30 ERA. His 21.5% strikeout rate and 9.7% walk rate have been close to average. His 53.3% ground ball rate is quite good but perhaps a lot of those grounders have found holes, as his .421 batting average on balls in play is quite high. His 3.76 SIERA suggests he has deserved far better than the ERA would indicate. He has also thrown 16 Triple-A innings this year with a 1.69 ERA, 35.9% strikeout rate, 9.4% walk rate and 50% ground ball rate. He is out of options, which has contributed to his many roster moves this year, so it’s possible his grip on a spot will again be tenuous this time around.

As for Montas, his transfer to the 60-day IL is not a surprise. It was reported a few days ago that he has a “pretty significant” injury to the ulnar collateral ligament in his elbow. It’s unclear how his 2026 will be impacted but he won’t return in 2025, so this move was inevitable.

Photo courtesy of Brad Penner, Imagn Images

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New York Mets Transactions Frankie Montas Jose Castillo Reed Garrett

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23 Comments

  1. top jimmy

    1 month ago

    That sounds ominous.

    Reply
  2. LFGMets (Metsin7) #BannedAgain&Again&AgainFireStearns

    1 month ago

    Reed Garrett is awful, and yet they bring up Castillo who is even worse. Why not give their hard throwing Triple A closer a try? They pulled the same stuff with Nate Lavender last year. Doesn’t make sense but I wouldn’t expect anything less then this PBO

    2
    Reply
    • rct

      1 month ago

      “Why not give their hard throwing Triple A closer a try?”

      Probably because they don’t have a “hard throwing Triple A closer”. In fact, they don’t have a AAA closer at all. Who are you talking about?

      7
      Reply
    • DanzigInTheDark

      1 month ago

      Have to assume you’re talking about Dylan Ross (Syracuse doesn’t have a designated closer this year; 20 different guys have recorded a save and Chris Devenski leads the team with a grand total of 4.)

      Ross missed all of 2023 with an elbow injury and pitched 1 inning at St Lucie last year before making 6 appearances in the Arizona Fall League. He threw 10 innings over two college seasons before being drafted, sandwiched around another injury that wiped out his 2021 season. He’s thrown on back to back days one single time this year, and has only thrown 6 times with two days rest – the rest of his appearances have come with 3+ days of rest. There’s no way they’re gonna throw him into a playoff race when you can really only use him twice a week.

      4
      Reply
      • Mets Era Thumping Soto

        1 month ago

        We are talking about the 13th pitcher on the team that only should be pitching a couple times a week anyway. At this juncture you bring up whoever gives them an opportunity to win. Castillo isn’t that. I personally would call up Tong and move Holmes back to the bullpen for the rest of the year.

        1
        Reply
        • DanzigInTheDark

          1 month ago

          Castillo has been fine with the Mets, though – 2.19 ERA/2.79 FIP in 14 appearances, 17 Ks in 12.1 IP, his only real blemish is that game he came into after Brazoban walked the bags full and he couldn’t put out the fire. Fine with him being another lefty in the pen to pitch twice a week while they assumedly let Ross end the year on a high note to build off of in 2026.

          3
          Reply
      • rct

        1 month ago

        Thanks for the info, Danzig. If that’s who he’s talking about, that’s hilarious. Also, Ross isn’t on the 40 man and he has 4.7 BB/9. Two more obstacles.

        3
        Reply
    • geofft

      1 month ago

      Nate Lavender A) wasn’t available last year, B) wasn’t a closer, and C) wasn’t a hard thrower.
      He was shut down and had TJ surgery in mid-April . and had his TJ surgery very soon after.
      His fastball averaged 90 MPH in 2023.
      And he only had 3 saves in 35 AAA appearances.

      3
      Reply
    • Roll

      1 month ago

      an injured Reed has been as good as a healthy Hesley right now even Castillo has been better. Hesley needs to move into low leverage role for a while til he gets straightened out or sync’d up. i think he has maybe 2 outting out of 10 without giving up a run. He is the opposite of Raley who has only had 2 games with runs scored out of 15. He had one bad outting that funnily enough was in relief of another bad Helsey outting. and one inherited runner in another game)..

      Wait didnt you say the team needed Helsey and your eye is never wrong? This proof you hate the mets?

      Surprised they didnt bring up Warren. I believe he has an option left for this year and while not a great reliever he should be ok. I guess they wanted the extra lefty but i think Castillo is out of options.

      1
      Reply
      • rct

        1 month ago

        “Surprised they didnt bring up Warren.”

        It may be because he just pitched yesterday. He also gave up five hits and four runs in one inning, not that it matters too much.

        2
        Reply
        • Roll

          1 month ago

          good point i forgot about that. Just thinking about the DFA portion and having to lose him instead of just optioning Warren back down.

          Reply
  3. Soto should bat first.

    1 month ago

    Mets gonna need some of those arms stashed away on the IL next year. Get ready for the return of Drew Smith and someone new like Alzolay.

    3
    Reply
    • kingmanscorner

      1 month ago

      Yes!Drew Smith is the answer!

      3
      Reply
  4. rjtfd

    1 month ago

    Who didn’t see that coming? Can’t pitch anyone every single day. Stearns never went for a legit starter or even a starter at deadline. So we are stuck with 4 starters that can’t go more than 4 innings.

    1
    Reply
    • CleaverGreene

      1 month ago

      Which SP in FA or at the deadline?

      Reply
  5. Bill

    1 month ago

    I don’t understand why the pitchers who are obviously injured don’t tell the team and instead go out there and stink it up. Then we find out it was because they were injured.

    Reply
    • Roll

      1 month ago

      i think sometimes they “man up” and just play through it and other times when they are bad or something is really off the trainers are called in and they just cant hide it from them.

      1
      Reply
  6. phenomenalajs

    1 month ago

    Castillo has been perfectly cromulent when called upon. He’ll probably be DFA’d again, though, when Megill is ready to return because Megill needs to be brought back from the 60-day IL onto the 40-man roster.

    1
    Reply
    • geofft

      1 month ago

      Yes, Castillo will probably be DFA’d again at some point. Thats just where he is on the totem pole.
      But its too soon to say who will be DFA’d, when it will happen, or for whom. Or when Megill will return. The Mets could decide to give Megill one more rehab start on 8/27, and call him up on 9/1 when rosters expand.

      1
      Reply
  7. chiparm

    1 month ago

    Hard to tell when you are hurt, and when you just tired or sore. Often times it is only when the analytics (velocity, rpms) or statistics really fall off that people take a picture to see what is going on in there.

    Montas was on the verge of getting released when he said his arm hurt. Garrett wants to contribute. He has bounced around and has found some success in NY past two years. He wants to pitch through it. He must really be hurting to say anything.

    Reply
  8. carlos15

    1 month ago

    Garrett is brutal to watch. He walks everyone, never comes up big and if it wasn’t for a strong April and May would be DFA’d on any other team. But when your GM doesn’t pay attention to the bullpen you’re stuck with no one come August.

    1
    Reply
    • Bill M

      1 month ago

      The GM pays a TON of attention to the bullpen. There’s been a million bullpen transactions this season

      Reply
  9. theruns

    1 month ago

    Tong’s FB has been as high as 98 recently.

    Reply

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