Headlines

  • Max Meyer To Undergo Season-Ending Hip Surgery
  • Whit Merrifield Announces Retirement
  • White Sox Sign Noah Syndergaard To Minor League Deal
  • Corbin Carroll Placed On IL With Wrist Fracture
  • Reds Designate Jeimer Candelario For Assignment
  • Hoops Rumors Has The Latest On NBA Draft, Free Agency
  • Previous
  • Next
Register
Login
  • Hoops Rumors
  • Pro Football Rumors
  • Pro Hockey Rumors

MLB Trade Rumors

Remove Ads
  • Home
  • Teams
    • AL East
      • Baltimore Orioles
      • Boston Red Sox
      • New York Yankees
      • Tampa Bay Rays
      • Toronto Blue Jays
    • AL Central
      • Chicago White Sox
      • Cleveland Guardians
      • Detroit Tigers
      • Kansas City Royals
      • Minnesota Twins
    • AL West
      • Houston Astros
      • Los Angeles Angels
      • Oakland Athletics
      • Seattle Mariners
      • Texas Rangers
    • NL East
      • Atlanta Braves
      • Miami Marlins
      • New York Mets
      • Philadelphia Phillies
      • Washington Nationals
    • NL Central
      • Chicago Cubs
      • Cincinnati Reds
      • Milwaukee Brewers
      • Pittsburgh Pirates
      • St. Louis Cardinals
    • NL West
      • Arizona Diamondbacks
      • Colorado Rockies
      • Los Angeles Dodgers
      • San Diego Padres
      • San Francisco Giants
  • About
    • MLB Trade Rumors
    • Tim Dierkes
    • Writing team
    • Advertise
    • Archives
  • Contact
  • Tools
    • 2024-25 MLB Free Agent List
    • 2025-26 MLB Free Agent List
    • 2024-25 Top 50 MLB Free Agents With Predictions
    • Projected Arbitration Salaries For 2025
    • Free Agent Contest Leaderboard
    • Contract Tracker
    • Transaction Tracker
    • Agency Database
  • NBA/NFL/NHL
    • Hoops Rumors
    • Pro Football Rumors
    • Pro Hockey Rumors
  • App
  • Chats
Go To Pro Hockey Rumors
Go To Hoops Rumors

Diego Segui Passes Away

By Anthony Franco | June 25, 2025 at 8:25pm CDT

Former ERA champion Diego Segui has passed away. He was 87.

Born in Cuba and a natural left-hander, Segui nevertheless began throwing a baseball right handed. He initially signed with the Reds but never got an opportunity in the Cincinnati farm system. He spent some time pitching for an independent team before the A’s purchased his contract. Segui would spend three seasons climbing the minor league ladder and reached the big leagues in 1962. The A’s, based in Kansas City at the time, used him mostly as a starting pitcher.

The 6’0″ hurler ate a lot of innings but didn’t have great numbers. The A’s sold his contract to the Washington Senators in 1966 before reacquiring him the following year. A move to the bullpen seemed to spark him, as he posted a 3.09 ERA over 70 innings. He turned in a career-low 2.39 mark over 52 appearances the following year, the franchise’s first in Oakland.

After that season, the Seattle Pilots — a team that played one season before moving to Milwaukee and rebranding as the Brewers — selected Segui in the expansion draft. He worked to a 3.35 ERA while logging 142 1/3 frames in an age when relievers frequently threw multiple innings. The Brewers traded him back to Oakland the following offseason.

The A’s third acquisition of Segui was their most successful. He had a career year in 1970, firing 162 innings across 47 appearances (including 19 starts). He led all qualified pitchers with a 2.56 earned run average. The A’s reached the postseason the following year, allowing Segui to make his playoff debut. He got the start in an elimination game against the Orioles during the AL Championship Series. He was outpitched by Jim Palmer and the A’s dropped the game 5-3.

Segui’s time with the organization ended for good the following season, as they dealt him to the Cardinals midway through the ’72 campaign. That unfortunately immediately preceded Oakland’s run of three consecutive titles in 1972-74. Segui spent a couple seasons in St. Louis before being traded to the Red Sox. He didn’t post great numbers with Boston but was on the ’75 team that ended his former club’s three-peat in the ALCS.  While Segui did not appear in that series, he tossed a mop-up inning in a Game 5 loss to the Reds in the World Series. An inherited runner scored on a sacrifice fly, but he retired George Foster, Dave Concepcion and Cesar Geronimo in order.

The Sox dropped the ’75 World Series in a classic seven-game set, which kept Segui from ever winning a championship. He finished his big league career in 1977 with the expansion Mariners. He was the first pitcher in team history as the Opening Day starter and earned the distinction of appearing for both Seattle franchises. Thanks to his age (39) and previous Seattle ties, he received the fantastic nickname “The Ancient Mariner.”

Segui’s MLB playing days concluded after the ’77 season. He pitched in parts of 15 seasons and logged a 3.81 ERA in more than 1800 innings. Segui won 92 games, recorded nearly 1300 strikeouts, and collected 71 saves. His playing days stretched far beyond the end of his big league time, though. He pitched in the Mexican League until 1984, going through age 46. Segui also had an extended run in the Venezuelan winter league during his MLB career, for which he was inducted into the Venezuelan Baseball Hall of Fame in 2003. His son David Segui would go to a 15-year MLB career of his own as a first baseman/outfielder. MLBTR sends our condolences to the Segui family and others affected by his loss.

Share 0 Retweet 0 Send via email0

Boston Red Sox Oakland Athletics Obituaries

Rays, MLB Have Discussed Potential Playoff Hosting Plans
Main
D-Backs GM Mike Hazen Talks Trade Deadline
View Comments (22)
Post a Comment

22 Comments

  1. This one belongs to the Reds

    4 hours ago

    Remember Diego well from that classic series and some old baseball cards.

    Another player from my youth gone. Where does the time go? Some days it seems like I was catching a doubleheader just yesterday.

    But I digress. Rest in peace, Diego. Condolences to your family and friends.

    14
    Reply
    • For Love of the Game

      3 hours ago

      We’re old, my friend. But we’re still here, enjoying the game we still love and reminiscing about the old days.

      9
      Reply
    • Wren

      1 hour ago

      some of my first baseball memories that 75 series. lost Mick Ralphs yesterday from Mott/Bad co. fame. between musicians and ohter childhood heroes leaving the earth…not a lot of fun. enjoy every sandwich boyos.

      1
      Reply
  2. MacGromit

    4 hours ago

    RIP, Diego. Never knew David Segui’s pop was that well traveled a hurler, pitching through age 46 is amazing. Thanks for the history lesson of the Ancient Mariner.

    4
    Reply
  3. Unclemike1526

    4 hours ago

    I remember Diego well. He was dominant at times and probably deserved a better record than he ended up with. RIP big guy.

    3
    Reply
  4. mwest54

    4 hours ago

    I’ll always remember him because he started for the visiting Kansas City A’s in the very first game I ever went to, at Comiskey Park in Chicago in 1963.

    6
    Reply
  5. Non Roster Invitee

    4 hours ago

    I have a sweet PSA graded 9 of the 1970 ERA leaders and there he is on top with Jim Palmer in second!
    Baseball lifer.
    RIP Diego Segui.

    7
    Reply
  6. batsbaseball

    4 hours ago

    David Segui one of my favorite orioles. Rip

    2
    Reply
    • Datashark

      3 hours ago

      at first I thought it was david too.

      2
      Reply
    • Dooper

      3 hours ago

      David was king in the junk wax era. Had so many of his cards as a kid.

      1
      Reply
      • Rsox

        2 hours ago

        Same here. As utterly worthless as most of those cards are now i miss those days

        1
        Reply
        • Dooper

          2 hours ago

          Wally Joyner and Ben Grieve are up there.

          1
          Reply
      • Datashark

        35 mins ago

        put him with Greg Jefferies I got millions of his – would have been great if he turned out like they thought soon after he became useful as bookmarks.

        Reply
  7. jorge78

    3 hours ago

    RIP Diego…..

    Reply
  8. Senioreditor

    2 hours ago

    I believe he’s the only player to play on both the Seattle Pilots & Seattle Mariners.

    2
    Reply
    • KaraokeTJ

      52 mins ago

      Yes

      Reply
  9. Rsox

    2 hours ago

    R.I.P. to Diego and condolences for the Segui family.

    Never saw Diego play as his career was over before i was born but did see a lot of David’s games over the years, especially when he was with Baltimore

    1
    Reply
    • Acoss1331

      2 hours ago

      At first glance I thought the headline said David Segui, I was like woah he’s not that old what the heck?

      Rest in Peace to Diego Segui.

      1
      Reply
  10. Rounding3rd

    2 hours ago

    He was clearly the best pitcher on my first MLB team, the Seattle Pilots. I loved watching him pitch. The team was terrible but he was great.

    1
    Reply
  11. Alan53

    1 hour ago

    Remember him well with the A’s. He was a real competitor in an era when successful players acted like they’d been there before.

    1
    Reply
  12. dugmet

    27 mins ago

    Seemed like he was in every pack of baseball cards I opened in the 1970s.

    Reply
  13. Rockies bad 2

    14 mins ago

    Thank you for the detailed summary of his career. He is one of the many players who were very important and well known in their era, but not even known by so many younger fans. So many good players that are not HOF worthy but need to be remembered. Also probably the last ex-Sioux City Soos player to be playing in the MLB. RIP Diego.

    1
    Reply

Leave a Reply Cancel reply

Please login to leave a reply.

Log in Register

    Top Stories

    Max Meyer To Undergo Season-Ending Hip Surgery

    Whit Merrifield Announces Retirement

    White Sox Sign Noah Syndergaard To Minor League Deal

    Corbin Carroll Placed On IL With Wrist Fracture

    Reds Designate Jeimer Candelario For Assignment

    Hoops Rumors Has The Latest On NBA Draft, Free Agency

    Mets Option Francisco Alvarez

    Reds To Promote Chase Burns For MLB Debut

    A.J. Puk Undergoes Elbow Surgery; Gabriel Moreno Diagnosed With Fractured Finger

    Mariners Designate Rowdy Tellez For Assignment

    Braves To Select Didier Fuentes

    Anthopoulos On Trading Chris Sale: “Will Not Happen”

    Rays Owner Stuart Sternberg In “Advanced” Talks To Sell Team

    Rafael Devers To Start Work At First Base With Giants

    Giants Acquire Rafael Devers

    Shohei Ohtani To Make Dodgers Pitching Debut On Monday

    Roki Sasaki No Longer Throwing; No Timetable For Return

    Nationals To Promote Brady House

    White Sox, Brewers Swap Aaron Civale, Andrew Vaughn

    Justin Martínez To Undergo Tommy John Surgery

    Recent

    MLB Mailbag: Helsley, Giants, Rangers, Brewers, Gore, Cubs, Padres

    Trade Deadline Outlook: San Francisco Giants

    MLBTR Podcast: The Braves Say They Won’t Sell, Jeimer Candelario DFA’d, And Injured D-Backs

    D-Backs GM Mike Hazen Talks Trade Deadline

    Diego Segui Passes Away

    Rays, MLB Have Discussed Potential Playoff Hosting Plans

    Extension Talks Between Astros, Jeremy Peña Put On Hold

    Blue Jays Designate Spencer Turnbull For Assignment

    Poll: NL MVP Race Check-In

    Mets Designate José Castillo, Richard Lovelady For Assignment

    MLBTR Newsletter - Hot stove highlights in your inbox, five days a week

    Latest Rumors & News

    Latest Rumors & News

    • 2024-25 Top 50 MLB Free Agents With Predictions
    • Nolan Arenado Rumors
    • Dylan Cease Rumors
    • Luis Robert Rumors
    • Marcus Stroman Rumors

     

    Trade Rumors App for iOS and Android App Store Google Play

    MLBTR Features

    MLBTR Features

    • Remove Ads, Support Our Writers
    • Front Office Originals
    • Front Office Fantasy Baseball
    • MLBTR Podcast
    • 2024-25 Offseason Outlook Series
    • 2025 Arbitration Projections
    • 2024-25 MLB Free Agent List
    • 2025-26 MLB Free Agent List
    • Contract Tracker
    • Transaction Tracker
    • Extension Tracker
    • Agency Database
    • MLBTR On Twitter
    • MLBTR On Facebook
    • Team Facebook Pages
    • How To Set Up Notifications For Breaking News
    • Hoops Rumors
    • Pro Football Rumors
    • Pro Hockey Rumors

    Rumors By Team

    • Angels Rumors
    • Astros Rumors
    • Athletics Rumors
    • Blue Jays Rumors
    • Braves Rumors
    • Brewers Rumors
    • Cardinals Rumors
    • Cubs Rumors
    • Diamondbacks Rumors
    • Dodgers Rumors
    • Giants Rumors
    • Guardians Rumors
    • Mariners Rumors
    • Marlins Rumors
    • Mets Rumors
    • Nationals Rumors
    • Orioles Rumors
    • Padres Rumors
    • Phillies Rumors
    • Pirates Rumors
    • Rangers Rumors
    • Rays Rumors
    • Red Sox Rumors
    • Reds Rumors
    • Rockies Rumors
    • Royals Rumors
    • Tigers Rumors
    • Twins Rumors
    • White Sox Rumors
    • Yankees Rumors

    Navigation

    • Sitemap
    • Archives
    • RSS/Twitter Feeds By Team

    MLBTR INFO

    • Advertise
    • About
    • Commenting Policy
    • Privacy Policy

    Connect

    • Contact Us
    • Twitter
    • Facebook
    • RSS Feed

    MLB Trade Rumors is not affiliated with Major League Baseball, MLB or MLB.com

    hide arrows scroll to top

    Register

    Desktop Version | Switch To Mobile Version