Seth Martinez: Breaking News, Rumors & Highlights

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The Red Sox announced yesterday that righty Seth Martinez has been sent outright to Triple-A Worcester. Martinez was designated for assignment three days ago.

Boston Red Sox News / Boston Red Sox on SI / August 14

Red Sox's Seth Martinez Gets Next Steps After Boston DFA

Seth Martinez's time on the Boston Red Sox's 40-man roster was short-lived, but his story with the organization might not yet be fully told. Martinez pitched the eighth inning of Tuesday night's game, with the Red Sox trailing 4-3 against the Toronto Blue Jays.

MLB News / MLB on ClutchPoints / August 12

Red Sox announce 2 pitching roster moves before Blue Jays clash

The Boston Red Sox are suddenly struggling after a previous hot stretch. Nevertheless, they are still in the American League Wild Card conversation. Ahead of their game on Wednesday night against the Toronto Blue Jays, Boston announced two roster moves.

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Boston Red Sox News / MLB Trade Rumors / August 12

Red Sox To Designate Seth Martinez For Assignment

The Red Sox are expected to designate righty Seth Martinez for assignment, Chris Cotillo of MassLive.com reports. His spot on the roster will go to lefty Alec Gamboa, who’s being recalled from Triple-A Worcester (as reported by Tommy Cassell of the Worcester Telegram & Gazette).

Athletics News / Yardbarker

The most surprising player from every MLB team for the 2026 season

The 2026 season has been headlined by young players emerging, but some wily veterans have also had their day. As we head toward the end of the regular season, these 30 players stand out as the biggest surprises on their teams.

Boston Red Sox News / Field Level Media / August 9

After rare loss, Red Sox add RHP Seth Martinez to bullpen

One day after their nine-game winning streak came to an end, the Boston Red Sox made an adjustment to their bullpen, selecting the contract of right-hander Seth Martinez from Triple-A Worcester.

Boston Red Sox News / MLB Trade Rumors / August 9

Red Sox Select Seth Martinez

The Red Sox have selected right-hander Seth Martinez from Triple-A Worcester, the team announced. They optioned lefty Raymond Burgos to Worcester in a corresponding move.

Boston Red Sox News / Over The Monster / January 28

Meet new Red Sox minor league reliever Seth Martinez

He’s Seth Martinez. If you’re like me, you saw the name “Seth” in an article about Red Sox transactions and briefly celebrated because you thought that Seth Lugo was coming to Boston.

MLB News / MLB Trade Rumors / January 10

Red Sox, Seth Martinez Agree To Minor League Deal

The Red Sox agreed to a minor league contract with reliever Seth Martinez, as first reported by Andrew Parker of Sox Prospects. He’ll get a non-roster invitation to MLB camp.

MLB News / Boston Red Sox on SI / January 9

Red Sox Sign 31-Year-Old Pitcher After Marlins Exit

The Boston Red Sox reportedly made another deal on Friday evening. No, it was not some splashy, nine-figure signing. No, it was not an MLB deal, which the club is the only team in baseball to not hand out yet.

Miami Marlins News / MLB Trade Rumors / September 11, 2025

Marlins designate veteran right-hander for assignment

The Marlins announced that left-hander Ryan Weathers has been reinstated from the 60-day injured list, a move which was previously reported. In a corresponding move, right-hander Seth Martinez has been designated for assignment.

MLB News / Yardbarker

The most disappointing player from every MLB team for the 2026 season

The 2026 season hasn't gone as planned for many MLB players. These 30 players stand out as the biggest disappointments for their respective teams.

Miami Marlins News / MLB Trade Rumors / August 27, 2025

Marlins select Seth Martinez

The Marlins announced Wednesday that they’ve selected the contract of righty Seth Martinez from Triple-A Jacksonville and placed fellow righty Janson Junk on the 15-day injured list due to ulnar nerve irritation in his right arm.

MLB News / MLB Trade Rumors / March 28, 2025

Marlins outright reliever Seth Martinez

The Marlins assigned reliever Seth Martinez outright to Triple-A Jacksonville, according to the MLB.com transaction log. That indicates he cleared waivers after being designated for assignment on Wednesday.

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Miami Marlins News / MLB Trade Rumors / March 26, 2025

Marlins designate Seth Martinez for assignment

The Marlins announced Wednesday that right-hander Seth Martinez has been designated for assignment. His spot on the 40-man roster goes to righty Tyler Phillips, whom Miami acquired from the Phillies in exchange for cash today.

Seattle Mariners News / Seattle Mariners on SI / March 15, 2025

Seattle Mariners Lose Veteran Pitcher, Open Up Spot on 40-Man Roster as a Result

The Seattle Mariners lost right-handed pitcher Seth Martinez in an apparent waiver claim on Saturday. First, the Mariners PR team announced that Martinez had been claimed off waivers by the Miami Marlins.

MLB News / MLB Trade Rumors / March 15, 2025

Marlins claim veteran right-hander off waivers from Mariners

He only joined the Mariners on another waiver claim from Miami less than two weeks ago.

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Seattle Mariners News / Seattle Mariners on SI / March 3, 2025

Seattle Mariners Claim Interesting Former Rival Off Waivers

The Seattle Mariners bullpen still has some open spots left heading into 2025, and the team added another arm to the mix on Sunday. The Mariners claimed right-handed reliever Seth Martinez off waivers from the Miami Marlins.

MLB News / MLB Trade Rumors / March 2, 2025

Mariners Claim Seth Martinez

The Mariners announced that right-hander Seth Martinez was claimed off waivers from the Marlins. Righty Jackson Kowar was placed on the 60-day injured list in Seattle’s corresponding roster move.

MLB News / Seattle Mariners on SI / February 28, 2025

Former Little-Used Seattle Mariners Pitcher Signs with Miami Marlins

Former Seattle Mariners reliever Brett de Geus signed a new contract with the Miami Marlins on Thursday. The Marlins Communications Department announced the move on social media: The Miami Marlins today claimed RHP Brett de Geus off waivers from the Pittsburgh Pirates.

MLB News / MLB Trade Rumors / February 27, 2025

Marlins claim righty Brett de Geus off waivers from Pirates

The Marlins announced that they have claimed right-hander Brett de Geus off waivers from the Pirates. The latter club designated him for assignment last week.

Arizona Diamondbacks News / Field Level Media / February 20, 2025

Marlins claim RHP Seth Martinez off waivers from Diamondbacks

The Miami Marlins claimed right-hander Seth Martinez off waivers from the Arizona Diamondbacks on Thursday. The Diamondbacks designated Martinez, 30, for assignment on Monday when they agreed to terms with right-handed reliever Kendall Graveman to a one-year contract.