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White Sox Sign Sean Newcomb

By Nick Deeds | December 23, 2025 at 10:11am CDT

The White Sox announced this morning that they’re in agreement with left-hander Sean Newcomb on a one-year deal that guarantees the southpaw $4.5MM this morning. Will Sammon of The Athletic reports that Newcomb “will at least get the chance to start” for Chicago. Lefty Ryan Rolison was designated for assignment to make room for Newcomb on the 40-man roster. Newcomb is a client of Tidal Sports Group.

Newcomb, 32, was a first-round pick by the Angels back in 2012 and spent years as a consensus top-100 prospect in the minors. The lefty made his big league debut with Atlanta back in 2017 after previously coming over as part of the Andrelton Simmons trade. He spent the first two seasons of his career as a rotation piece, with a 4.06 ERA (103 ERA+) and a 4.16 FIP that gave him the look of a decent back-end starter. Unfortunately, in 2019 early season struggles led to him being demoted to Triple-A and moved into a bullpen role upon his return. He started four games for the Braves in 2020 but struggled badly across those starts as well, and ultimately did not start another game for the team before being designated for assignment by the club.

The lefty was traded to the Cubs shortly after his DFA and moved to the bullpen for the club, but struggled to put things together over the next few seasons. He pitched to an atrocious 6.61 ERA in 47 2/3 innings of work at the major league level between the Cubs and A’s over the next three seasons, held back primarily by a whopping 15.0% walk rate. Back in January, Newcomb latched on with the Red Sox on a minor league deal and found a path back to a big league rotation job between a strong performance in Spring Training coupled with injuries to rotation pieces like Lucas Giolito and Brayan Bello that kept them off the Opening Day roster.

More to come.

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Chicago White Sox Newsstand Transactions Sean Newcomb

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View Comments (47)
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47 Comments

  1. TUD

    1 hour ago

    Nice signing for the Pale Hose. They don’t have a lot of LH pitchers at the moment not named Schultz, H Smith and Christian Oppor.

    3
    Reply
    • Bob Sacamano 310

      1 hour ago

      Those guys aren’t going to make an impact this year. Their bullpen has lefties Tyler Gilbert, Brandon Eisert, traded for Chris Murphy, and now Newcomb. Feels like they move Gilbert or Eisert, maybe in a deal with Robert or Sosa

      Reply
      • TUD

        1 hour ago

        They just dfa Ryan Rollison btw. Gilbert recorded a solid season last year so I feel that Eisert is the odd man out. I’ll give Sosa one more year to see he improves.

        Reply
        • Bob Sacamano 310

          59 mins ago

          Just not a lot of playing time to go around. Also doesn’t really have a position

          Reply
        • Dumpster Divin Theo

          23 mins ago

          He does mash tho. Mash potatoe.

          Reply
    • Franklin

      32 mins ago

      Just another over the hill recycled piece

      2
      Reply
    • I Like Big Bunts

      8 mins ago

      In what universe is this a “nice signing”?

      Reply
      • tasteefreeze

        2 seconds ago

        The one we currently exist in. He’s the best LH reliever left on the market at a good price.

        Reply
  2. ForDoingNothing

    1 hour ago

    Crazy that he couldn’t get a major league deal

    3
    Reply
    • Big Hurt

      1 hour ago

      Hilarious (if we were still in 2024).

      4
      Reply
    • Bad Dumb Tiss

      1 hour ago

      LOL

      Reply
    • Dumpster Divin Theo

      21 mins ago

      As the Gloved King of Pop would say as he scans the morning transactions page: hee hee

      Reply
    • I Like Big Bunts

      7 mins ago

      “Crazy” = not at all crazy

      Reply
  3. phenomenalajs

    1 hour ago

    Apparently the Sox are trying to be somewhat competitive.

    3
    Reply
    • TUD

      1 hour ago

      Newcomb was one of the better LH relievers in the FA market.

      2
      Reply
      • RunDMC

        1 hour ago

        Does that say more about the FA market or Newcomb?

        5
        Reply
      • Bluebird

        16 mins ago

        Yes sir! I feel like Newcomb didn’t get his respect for his 2025 season. He was obviously better with the A’s, however, He has definitely had some success in the bigs.

        Reply
    • yetipro

      17 mins ago

      Going to need an elite offense, then.

      Reply
  4. whyhayzee

    1 hour ago

    I don’t really understand why the Red Sox dumped him so fast. He was useful.

    2
    Reply
    • JoeBrady

      59 mins ago

      I wasn’t crazy about that either, but we had a good BP.

      Reply
      • deweybelongsinthehall

        20 mins ago

        Numbers. Plain and simple.

        Reply
  5. bloomquist4hof

    1 hour ago

    My guess is this was the best contract and/or guarentee of playing time he had on the table. Good chance he reinforces someone’s bullpen come July and would not be shocked at all if he has a decent year. Good pickup for the White Sox.

    2
    Reply
    • holecamels35

      1 hour ago

      Yeah, he was filthy for the A’s and if he has a similar showing, can really net a decent prospect come July like you said. This is the kind of move all “non-contending” teams should do. Don’t let that money burn a hole in your pocket. Put it to use in a way that won’t mess up future seasons.

      4
      Reply
  6. vaderzim

    1 hour ago

    Nukem

    3
    Reply
  7. Salzilla

    1 hour ago

    Good signing! I’ll be curious to see if there’s more up their slee–er socks(?) this offseason.

    2
    Reply
  8. CC Ryder

    1 hour ago

    This is a different look for the White Sox, apparently they’re trying to improve and not be an embarrassment on the field

    Reply
  9. JoeBrady

    57 mins ago

    Starter or reliever?

    Reply
    • TUD

      42 mins ago

      RP

      Reply
      • RunDMC

        34 mins ago

        IMHO, I would imagine he signed for a rotation tryout, then could transition to RP, if needed. Considering how shallow the LH RP free agent market is, it’s surprising he couldn’t use an excellent ’25 to parlay into a multi-year deal (and/or guaranteed dollars), unless he was willing to sacrifice some (on a less competitive team) for a chance to start — not unlike Soroka/ARZ, which he commented was a reason he turned down better offers from other teams.

        Reply
      • I Like Big Bunts

        6 mins ago

        Nope. Starter

        Reply
  10. Astros71

    56 mins ago

    In 2025, they were 60-102. In 2026, they will be 70-92

    Reply
    • Dumpster Divin Theo

      18 mins ago

      Baby’s first steps on the moon. First Neil and Buzz, then before you know it cheesy Roger Moore, Nordic super model and Jaws are hamming it up in space

      Reply
  11. DolemiteisMyname

    56 mins ago

    What rock did he crawl out from under?

    Reply
    • Dumpster Divin Theo

      17 mins ago

      Plymouth? Gibraltar? Dwayne Johnson?

      Reply
  12. cwsOverhaul

    56 mins ago

    Nice-lefty BP arm that has good command. Let’s get a couple more low cost relievers (righties) or promote from AA to join W. Gonzalez….and cut bait with bad relievers of last couple seasons. Bannister and company better start producing some guys who can get 3 outs-he’s not living up to the development hype first 2 years.

    1
    Reply
  13. jerseystrongsports

    55 mins ago

    Good pickup. And chip they could trade fora prospect at trade deadline

    1
    Reply
    • Dumpster Divin Theo

      16 mins ago

      Or they could trade Dale

      Reply
  14. DolemiteisMyname

    47 mins ago

    I’m Perry didn’t sign him. He ATL written all over him

    Reply
    • inkstainedscribe

      36 mins ago

      They tried once. He wasn’t cut out to be a starter (couldn’t finish hitters), and that’s what they needed. Took a few years for him to get it together.

      Reply
  15. julyn82001

    45 mins ago

    Thought the A’s were going to bring Sean back as he was lights out… I guess they have other plans going forward…

    1
    Reply
  16. Alien53

    36 mins ago

    Based on the terribly worded first sentence of the article, it sounds like he already received the full salary this morning.

    2
    Reply
    • RunDMC

      23 mins ago

      LOL…”leave a bag of cash on at the corner this morning, and we’ll have a deal this morning”.

      Reply
    • Dumpster Divin Theo

      15 mins ago

      Maybe he did. X muss bonie

      Reply
  17. raulito23

    30 mins ago

    Buena firma.

    Reply
  18. Braves Butt-Head

    15 mins ago

    Sign him if he does good flip him for a prospect in July

    1
    Reply
  19. Old York

    7 mins ago

    Man, White Sox are so active this winter. Could be a decent team next year. Not making the playoffs but could see a few more wins.

    Reply
  20. I Like Big Bunts

    6 mins ago

    Waived by June.

    Reply

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