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Mets Designate Jose Castillo For Assignment

By Mark Polishuk | August 30, 2025 at 12:19pm CDT

The Mets announced that left-hander Jose Castillo has been designated for assignment.  Right-hander Chris Devenski was called up from Triple-A Syracuse in the corresponding move.  The transaction brings Devenski’s fresh arm into the bullpen, as Castillo tossed 47 pitches over a two-inning relief outing in Friday’s 19-9 rout of the Marlins.

Castillo is out of minor league options, and thus this is the fourth time this season he has been DFA’d since has to first clear waivers before being sent to Triple-A.  The first designation came in May when Castillo was still a member of the Diamondbacks, and the Mets then brought the southpaw into the organization via trade.  In Castillo’s previous two DFAs with New York, he cleared waivers and was outrighted to Syracuse.  It stands to reason that the same will happen here, though Castillo has the right to reject an outright assignment and elect free agency if he wants to explore the open market.

Despite the roster churn, Castillo has pitched quite well during his time in Queens, posting a 2.35 ERA, 53.3% grounder rate, 25.7% strikeout rate, and 8.1% walk rate over 15 1/3 innings with the Mets.  This represents Castillo’s best stretch in the majors since his 2018 rookie season, when he broke into the Show with a 3.29 ERA over 38 1/3 relief innings with the Padres.

However, Castillo tossed just two MLB innings between the 2019-24 seasons, due to a variety of injuries that included a Tommy John surgery.  His bottom-line numbers for New York provide some proof that the 29-year-old can still be effective against big league hitters, even if the Mets see him as an expendable arm.

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New York Mets Transactions Chris Devenski Jose Castillo

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View Comments (14)
Post a Comment

14 Comments

  1. 10centBeerNight

    8 hours ago

    Seemed this was likely after he pitched 2 last night. Now would be a good time for Manaea and Senga to begin giving some length

    1
    Reply
    • Soto should bat first.

      7 hours ago

      Yup. I was secretly hoping the Mets would DFA Stanek and keep Castillo but the moment I saw him back out on the mound I lost hope for that outcome. I still think Stanek is a goner at some point in September unless he excels.

      2
      Reply
  2. angt222

    7 hours ago

    Castillo has been solid with the Mets. With so few LHP options in the organization, I’d like to see him retained in the offseason as depth.

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

      7 hours ago

      @antg222 Castillo has been solid? Are we watching the same team play?

      Reply
  3. rct

    7 hours ago

    “Despite the roster churn, Castillo has pitched quite well during his time in Queens, posting a 2.35 ERA, 53.3% grounder rate, 25.7% strikeout rate, and 8.1% walk rate over 15 1/3 innings with the Mets.”

    All of that despite an insane .467 BABIP. He’s a solid middle reliever who should find a home quickly.

    1
    Reply
    • LFGMets (Metsin7) #BannedAgain&Again&AgainFireStearns

      7 hours ago

      @rct his BABIP is high because he is a lousy pitcher who isn’t fooling anyone. They hit hard hit shots off him. He does not induce weak contact. He shouldn’t be in the majors

      Reply
      • rct

        5 hours ago

        Ridiculous assessment as usual. No pitcher gives up a consistent .467 BABIP. Get a clue.

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

          3 hours ago

          @rct they do if they aren’t major league pitchers. You take Joe Smo from down the block and he’ll have a BABIP of close to 1.000. Castillo is a single A pitcher

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

    7 hours ago

    This article is complete misinformation. Castillo has been awful for the Mets. Lets just ignore all of his inherited runners that have scored on him or all the walks that he gives up. Hopefully he will never pitch again as a Met

    Reply
    • Roll

      3 hours ago

      wow talk about misinformation

      im assuming you and everyone (me included) would say Sugar Diaz is a good reliever. If so would you be cutting him and banning him as a met as well because he gave up almost as many IR scored in one game than Castillo did for the season so far. Actually he has a better inherited runner strand rate than Diaz. Castillo is no where near as good but your reason is silly.

      If you talking about walk rate he has a better walk rate than Helsley before he got traded.to the mets someone you said the mets really needed. I wonder what the record would be if they let Castillo pitched some of Helsley’s games at this point. Still hope he comes around but its getting devin williams start of the season bad if not worse.

      1
      Reply
      • LFGMets (Metsin7) #BannedAgain&Again&AgainFireStearns

        3 hours ago

        @Roll Yes because Helsly, who lead the league in saves last year, is on the same level as Jose Castillo who has been DFA’d 4 times this year? Do you really believe some of the crap that you spew out? There is a reason as to why Castillo has been DFA’d so many times and no one has claimed him. He is awful. I guess you are smarter then the other 29 MLB GMs?

        Reply
  5. Rsox

    5 hours ago

    What happened to Devenski? He went from being a solid bullpen piece in Houston to a journeyman in pretty short fashion

    Reply
    • rct

      4 hours ago

      Not sure but he’s in the game right now after a bad start by Peterson.

      Reply
      • phenomenalajs

        54 mins ago

        He was very solid today keeping the team in the game to make a comeback before they blew it.

        1
        Reply

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