Headlines

  • Cardinals Sign Sonny Gray To Three-Year Deal
  • Our MLB Contract Tracker Is Here!
  • Paul DeJong In Agreement With White Sox On Major League Deal
  • Dodgers To Re-Sign Jason Heyward
  • Braves, White Sox Have Discussed Dylan Cease Trade
  • NPB’s Yokohama BayStars Post Shota Imanaga
  • Previous
  • Next
Register
Login
  • Hoops Rumors
  • Pro Football Rumors
  • Pro Hockey Rumors

MLB Trade Rumors

  • 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
    • Projected Arbitration Salaries For 2024
    • 2023-24 MLB Free Agent List
    • 2024-25 MLB Free Agent List
    • Contract Tracker
    • Transaction Tracker
    • Arbitration 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

Marlins Select Sean Guenther, Option Lewin Diaz

By Mark Polishuk | August 1, 2021 at 11:46am CDT

The Marlins have selected the contract of left-hander Sean Guenther from Triple-A Jacksonville.  First baseman Lewin Diaz was optioned to Triple-A in the corresponding move.

The 25-year-old Guenther is now in position to make his Major League debut.  A seventh-round pick out of Notre Dame in the 2017 draft, Guenther isn’t ranked by either Baseball America or MLB Pipeline as one of Miami’s top 30 prospects, but the lefty has earned his promotion with some strong numbers.  Since becoming a full-time relief pitcher in 2019, Guenther has greatly increased his strikeout totals, with a 34% K rate over 40 1/3 combined innings at Double-A and Triple-A ball this season.

2021 marked the first time Guenther had pitched beyond the A-ball level, and while he performed well at Double-A, his 4.76 ERA over 22 2/3 Triple-A frames indicates some growing pains.  Still, much of that damage was done over two calamitous  outings on July 6 and 9, as Guenther allowed nine runs over 1 2/3 total innings.

While Guenther will get his first taste of the majors, Diaz heads back to Triple-A after another brief stint with the Marlins.  Diaz has only a .496 OPS over 73 career plate appearances with Miami, but the 24-year-old has already displayed a lot of power potential down on the farm, albeit without much plate discipline.

Share 0 Retweet 3 Send via email0

Miami Marlins Transactions Lewin Diaz Sean Guenther

Orioles Make Three Roster Moves
Main
Marlins Sign First-Rounder Kahlil Watson
View Comments (3)

Comments

  1. BovineCrab

    2 years ago

    Wow. This is a huge move. I can tell by how many people have already commented.

    1
    Reply
    • tstats

      2 years ago

      No one wants Diaz on the roster. .496 seems to high for his OPS

      Reply
      • Mjm117

        2 years ago

        Yeah especially with a whopping 73 at bats.

        Reply

Leave a Reply Cancel reply

Please login to leave a reply.

Log in Register

ad: 300x250_1_MLB

    Top Stories

    Cardinals Sign Sonny Gray To Three-Year Deal

    Our MLB Contract Tracker Is Here!

    Paul DeJong In Agreement With White Sox On Major League Deal

    Dodgers To Re-Sign Jason Heyward

    Braves, White Sox Have Discussed Dylan Cease Trade

    NPB’s Yokohama BayStars Post Shota Imanaga

    Tigers To Sign Kenta Maeda

    Jung Hoo Lee Likely To Be Posted In Early December

    D-backs Acquire Eugenio Suarez

    Nearly Half The League Has Reached Out To Yoshinobu Yamamoto

    Shota Imanaga Likely To Be Posted By Monday

    Cardinals Sign Kyle Gibson To One-Year Deal

    Cardinals Sign Lance Lynn To One-Year Deal

    Padres Name Mike Shildt Manager

    Braves Sign Reynaldo Lopez

    Yoshinobu Yamamoto Officially Posted By Orix Buffaloes

    Zack Britton Announces Retirement

    Phillies Re-Sign Aaron Nola

    Brewers Non-Tender Brandon Woodruff

    Mariners, Red Sox Swap Luis Urias, Isaiah Campbell

    Recent

    Cardinals Sign Sonny Gray To Three-Year Deal

    Our MLB Contract Tracker Is Here!

    Latest On Red Sox’s Pitching Targets

    White Sox, Mark Payton Agree To Minor League Contract

    Orioles Notes: Rotation, Nola, Stadium

    A’s, Hoy Park Agree To Minor League Deal

    Paul DeJong In Agreement With White Sox On Major League Deal

    Tigers Sign Ryan Vilade To Minor League Deal

    Guardians Announce Finalized Coaching Staff, Name Craig Albernaz Bench Coach

    Diamondbacks Sign José Castillo To Minor League Deal

    ad: 300x250_5_side_mlb

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

    Latest Rumors & News

    Latest Rumors & News

    • Shohei Ohtani Rumors
    • Yoshinobu Yamamoto Rumors
    Trade Rumors App for iOS and Android

    MLBTR Features

    MLBTR Features

    • Go Ad-Free
    • 2023-24 Offseason Outlook Series
    • 2024 Arbitration Salary Projections
    • 2023-24 MLB Free Agent List
    • 2024-25 MLB Free Agent List
    • MLB Player Chats
    • 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

    ad: 160x600_MLB

    Navigation

    • Sitemap
    • Archives
    • 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 arrowsFOX Sports Engage Network scroll to top

    Register

    Desktop Version | Switch To Mobile Version