Seth Martinez - MLB News, Rumors, & Updates

Signs with Red Sox as NRI The Red Sox signed Martinez to a minor-league contract Friday that includes an invitation to spring training, Andrew Parker of SoxProspects.com reports.

Impact Martinez has produced a 4.00 ERA and 126:57 K:BB over 144 innings covering parts of five major-league seasons. The 31-year-old will try to win a spot in the Boston bullpen but is likely ticketed for Triple-A Worcester to begin the 2026 campaign.

JANUARY 9 • ROTOWIRE

Clears waivers The Marlins outrighted Martinez to Triple-A Jacksonville on Saturday.

Impact Martinez will remain in the organization as relief depth at Jacksonville after he cleared waivers upon being pushed off the 40-man roster Thursday. In six appearances for the big club this season, Martinez has posted a 5.40 ERA, 1.05 WHIP and 4:3 K:BB in 6.2 innings.

SEPTEMBER 15, 2025 • ROTOWIRE

Jettisoned from 40-man The Marlins designated Martinez for assignment Thursday.

Impact Martinez has made six appearances since joining the active roster Aug. 27, during which he's coughed up four earned runs across 6.2 innings. He'll now lose his place on the MLB and 40-man rosters to make room for Ryan Weathers' (lat) return from the 60-day IL.

SEPTEMBER 11, 2025 • ROTOWIRE

Added to roster The Marlins selected Martinez's contract from Triple-A Jacksonville on Wednesday.

Impact Martinez has spent the entire 2025 season at Jacksonville, posting a 3.71 ERA and 54:18 K:BB over 43.2 innings. He will likely operate in a middle relief role.

AUGUST 27, 2025 • ROTOWIRE

Added to roster The Marlins selected Martinez's contract from Triple-A Jacksonville on Wednesday.

Impact Martinez has spent the entire 2025 season at Jacksonville, posting a 3.71 ERA and 54:18 K:BB over 43.2 innings. He will likely operate in a middle-relief role.

AUGUST 27, 2025 • ROTOWIRE

Clears waivers Martinez cleared waivers Friday and was sent outright to Triple-A Jacksonville.

Impact Martinez was DFA'd by Miami on Wednesday to make room for Tyler Phillips but will officially remain with the organization after passing through waivers unclaimed. Martinez, 30, logged a 3.59 ERA and 1.27 WHIP in 52.2 innings with the Astros last season, but it will be tougher for him to work back into the majors now that he no longer holds a spot on the 40-man roster.

MARCH 29, 2025 • ROTOWIRE

Marlins acquire right-hander Tyler Phillips from Phillies for cash

The Marlins acquired right-handed pitcher Tyler Phillips from the Philadelphia Phillies in exchange for cash, Miami announced Wednesday

MARCH 26, 2025 • Associated Press

Marlins acquire Phillips from Phillies for cash MIAMI -- The Marlins acquired right-hander Tyler Phillips from the Phillies for cash on Wednesday afternoon, and in a corresponding move des...

MARCH 26, 2025 • MLB.COM

Loses roster spot The Marlins designated Martinez for assignment Wednesday.

Impact After being claimed off waivers from the Mariners on March 15, Martinez's stay on Miami's 40-man roster lasted less than two weeks with the Marlins swapping him out for right-hander Tyler Phillips, whom the team acquired from the Phillies on Wednesday. Martinez spent most of the 2024 season in the majors with Houston, serving in a middle-relief role while logging a 3.59 ERA, 1.27 WHIP and 36:18 K:BB while collecting three wins, three holds and one save over 52.2 innings.

MARCH 26, 2025 • ROTOWIRE

Claimed by Fish The Marlins claimed Martinez off waivers from Seattle on Saturday.

Impact Less than two weeks after moving from Miami to Seattle via waiver claim, Martinez will now head right back to Miami. The 30-year-old righty allowed four runs in just two-thirds of an inning during his lone appearance of the spring but his career 3.93 ERA should give him a good chance of sticking around in the Marlins' bullpen. Andrew Nardi (back) was placed on the 60-day injured list in a corresponding move.

MARCH 15, 2025 • ROTOWIRE

Claimed by Seattle The Mariners claimed Martinez off waivers from the Marlins on Sunday, Daniel Kramer of MLB.com reports.

Impact Seattle will be Martinez's fourth team of the offseason after he finished the 2024 campaign with Houston. The 30-year-old made 44 regular-season appearances for the Astros last season and had a 3.59 ERA, 1.27 WHIP and 36:18 K:BB across 52.2 innings.

MARCH 2, 2025 • ROTOWIRE

Designated for assignment The Marlins designated Martinez for assignment Thursday.

Impact Martinez was claimed off waivers from the Diamondbacks last Thursday, and after just a week with the team he'll lose his spot on the 40-man roster in favor of Brett de Geus, who was picked up off waivers from Pittsburgh on Thursday. Martinez finished last season with a 3.59 ERA and 1.27 WHIP over 52.2 regular-season innings with the Astros, so there could still be several teams willing to give him a spot on their 40-man instead.

FEBRUARY 27, 2025 • ROTOWIRE

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 Marti...

FEBRUARY 20, 2025 • NEWSOBSERVER.COM

Marlins get reliever Seth Martinez off waivers from Diamondbacks and put Eury Pérez on 60-day IL

The Miami Marlins have claimed right-handed reliever Seth Martinez off waivers from the Arizona Diamondbacks

FEBRUARY 20, 2025 • Associated Press

Claimed by Fish The Marlins claimed Martinez off waivers from Arizona on Thursday.

Impact The 30-year-old righty was pushed off the Diamondbacks' 40-man roster Monday to make room for Kendall Graveman (shoulder). Martinez spent all of last season with the Astros, turning in a 3.59 ERA and 1.27 WHIP alongside a 36:18 K:BB over 52.2 regular-season innings. Assuming he keeps a similar level of production during spring training, he'll have a good chance of winning a spot in Miami's Opening Day bullpen. Eury Perez (elbow) was placed on the 60-day injured list in a corresponding move.

FEBRUARY 20, 2025 • ROTOWIRE

Booted from 40-man roster The Diamondbacks designated Martinez for assignment Monday, Alex Weiner of ArizonaSports.com reports.

Impact The club needed to free a spot on its 40-man roster with the Kendall Graveman (shoulder) signing becoming official. Martinez was a waiver claim of the Diamondbacks earlier this offseason after he held a 3.59 ERA and 36:18 K:BB across 52.2 frames for Houston in 2024.

FEBRUARY 17, 2025 • ROTOWIRE

Claimed by Arizona The Diamondbacks claimed Martinez off waivers from the Astros on Monday.

Impact Martinez, 30, held a 3.59 ERA and 36:18 K:BB across 52.2 frames for Houston in 2024. He will provide the Diamondbacks with some additional right-handed relief depth.

NOVEMBER 4, 2024 • ROTOWIRE

Sent back to minors The Astros optioned Martinez to Triple-A Sugar Land on Tuesday, Brian McTaggart of MLB.com reports.

Impact Martinez had pitched two of the last three days, including Monday, and allowed four runs over 2.1 innings. He'll be replaced on the roster by fellow reliever Shawn Dubin.

SEPTEMBER 24, 2024 • ROTOWIRE

Back in big leagues The Astros recalled Martinez from Triple-A Sugar Land on Saturday

Impact With Tayler Scott (back) headed for the injured list, the Astros will call upon Martinez to fill the open spot in the bullpen. The 30-year-old righty has been solid in the majors this season, posting a 3.04 ERA and 1.21 WHIP through 50.1 innings. He'll most likely work in middle relief down the stretch.

SEPTEMBER 21, 2024 • ROTOWIRE

Optioned to Triple-A The Astros optioned Martinez to Triple-A Sugar Land on Saturday, Matt Kawahara of the Houston Chronicle reports.

Impact Martinez will be squeezed out of the Astros' bullpen in order to make room for Hector Neris, who signed with the team Thursday. With a 3.04 ERA and 1.21 WHIP through 50.1 innings, the 29-year-old Martinez remains a candidate to return to Houston's bullpen down the stretch.

AUGUST 24, 2024 • ROTOWIRE

Rejoins bullpen The Astros recalled Martinez from Triple-A Sugar Land on Wednesday, Matt Kawahara of the Houston Chronicle reports.

Impact Martinez was sent down earlier Wednesday but is back to fill the spot vacated by Kaleb Ort, who went on the paternity list. He will likely be optioned again later this week when Ort returns.

AUGUST 21, 2024 • ROTOWIRE

Sent back down The Astros optioned Martinez to Triple-A Sugar Land on Wednesday, Matt Kawahara of the Houston Chronicle reports.

Impact Martinez had been recalled this past weekend but didn't make an appearance during this stint in the majors. He's clearing out to make room on the roster for Justin Verlander, who returns from the injured list to start versus the Red Sox.

AUGUST 21, 2024 • ROTOWIRE

Recalled by Houston The Astros recalled Martinez from Triple-A Sugar Land on Saturday, Matt Kawahara of the Houston Chronicle reports.

Impact The move comes with Ryan Pressly heading to the 15-day injured list due to a lower back strain. Martinez was optioned to Sugar Land on July 31, and he has thrown 2.2 scoreless innings over his last three minor-league outings. He started the season in the majors, and across 41 outings with the Astros he's posted a 2.92 ERA and 1.22 WHIP across 49.1 innings.

AUGUST 17, 2024 • ROTOWIRE

Optioned to Triple-A The Astros optioned Martinez to Triple-A Sugar Land on Wednesday, Brian McTaggart of MLB.com reports.

Impact Martinez is one of the roster casualties as the Astros officially add trade acquisitions Yusei Kikuchi and Caleb Ferguson. He holds a 2.92 ERA but just a 34:18 K:BB over 49.1 innings with the Astros this season.

JULY 31, 2024 • ROTOWIRE

Works effectively in long relief Martinez (1-0) allowed one hit and no walks while striking out two across 3.2 scoreless innings to earn the win Monday against the Rangers.

Impact The Astros pitching staff was put in a tough position after Framber Valdez (elbow) was scratched. That was exacerbated after Blair Henley managed only one out while allowing five runs, but Martinez followed him into the game and managed to tally his 11 outs on just 32 pitches. Martinez is capable of working multiple innings in relief but has never started a big-league game, so he'll almost certainly return to a more traditional role out of the bullpen moving forward.

APRIL 9, 2024 • ROTOWIRE

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Marlins acquire right-hander Tyler Phillips from Phillies for cash

Marlins get reliever Seth Martinez off waivers from Diamondbacks and put Eury Pérez on 60-day IL