Seattle transferred Criswell (shoulder) to the 60-day injured list Friday.

EDGE Analysis

The move opens up a spot on the 40-man roster that the Mariners needed for Miles Mastrobuoni, whose contract was selected from Triple-A Tacoma after Julio Rodriguez (concussion) was placed on the 7-day IL. Criswell was diagnosed with a Grade-1 pectoral strain in mid-June but has since been tagged with a shoulder strain. The move to the 60-day IL doesn't change his projected return for early August, though a clearer timeline will be established once Criswell embarks on a rehab assignment.

Criswell was diagnosed with a Grade 1-plus pectoral strain Tuesday, Daniel Kramer of MLB.com reports.

EDGE Analysis

Criswell initially landed on the injured list last Tuesday with a shoulder strain, but further testing determined the issue to be in his pec. He's scheduled to undergo another MRI in 3-to-4 weeks, at which point he may be cleared to begin a throwing program. If all goes according to plan, the Mariners expect to activate the 29-year-old reliever sometime around the Aug. 3 trade deadline.

The Mariners placed Criswell on the 15-day injured list Tuesday with a right shoulder strain.

EDGE Analysis

Criswell has given up three earned runs in 1.1 combined innings over his last two appearances, and he appears to have come away from his latest outing Monday with shoulder trouble. He'll take at least two weeks off to recover, and Nick Davila will come up from Triple-A Tacoma to replenish Seattle's bullpen depth.

Criswell earned the save in Sunday's 8-0 win over the Guardians, allowing two hits while striking out five over three scoreless innings.

EDGE Analysis

Criswell was sharp Sunday, limiting the Guardians to a pair of singles to close out Seattle's shutout victory, earning his second career save. The 29-year-old Criswell made the team as a long-relief option after posting a 2.51 ERA across 14.1 innings in spring training. While he may have a defined role in the Mariners' bullpen, don't expect Criswell to be a frequent source of saves. The right-hander has a career ERA of 4.42 with a 1.42 WHIP across 158.2 major-league innings.

Criswell is competing for the final starting spot in Seattle's Opening Day rotation, per Daniel Kramer of MLB.com.

EDGE Analysis

With Bryce Miller (oblique) unlikely to be available by the start of the regular season, the Mariners' fifth rotation spot will likely come down to Criswell or Emerson Hancock. While Hancock is the early favorite for the job, the 29-year-old Criswell has added his name to the mix thanks to a strong spring. He's allowed just two runs on seven hits across 10.1 innings while striking out 10. Criswell spent most of the 2025 season in Triple-A, where he posted a 3.70 ERA across 65.2 innings. He did make 18 starts for the Red Sox in 2024, working to a 4.08 ERA with a 1.35 WHIP and 73 strikeouts across 99.1 innings. If Criswell doesn't crack the Opening Day rotation, he'll likely start the year as the long man in Seattle's bullpen.

The Mets traded Criswell to the Mariners on Friday in exchange for cash, Jorge Castillo of ESPN.com reports.

EDGE Analysis

The 29-year-old was DFA'd by the Mets on Wednesday following the team's acquisition of Freddy Peralta and Tobias Myers, but Criswell will recapture a 40-man spot upon moving to Seattle. He posted a 3.57 ERA and 1.58 WHIP in 17.2 regular-season innings with the Red Sox in 2025 and will compete for a spot in the Mariners' bullpen during spring training.

The Mets designated Criswell for assignment Wednesday, Anthony DiComo of MLB.com reports.

EDGE Analysis

Criswell will end up as the roster casualty necessary to create space on the Mets' 40-man following the acquisition of Freddy Peralta and Tobias Myers from Milwaukee on Wednesday. Criswell made seven regular-season appearances with the Red Sox last year, during which he logged a 3.57 ERA and 1.58 WHIP across 17.2 innings. If he passes through waivers unclaimed, he will likely spend the majority of 2026 at Triple-A Syracuse with a chance to make an occasional appearance in the majors.

The Mets claimed Criswell off waivers from the Red Sox on Friday, Jorge Castillo of ESPN.com reports.

EDGE Analysis

Criswell had been designated for assignment following Boston's five-player trade with Pittsburgh on Thursday. The 29-year-old has been a useful swingman for the Red Sox the last two seasons, holding a 4.00 ERA and 82:36 K:BB over 117 innings covering 19 starts and 14 relief appearances. Criswell does not have minor-league options remaining but is not yet arbitration-eligible, so the Mets will have several years of control of the righty.

The Red Sox designated Criswell for assignment Thursday, Chris Cotillo of MassLive.com reports.

EDGE Analysis

The Red Sox re-signed Criswell to a one-year contract in early November, but he'll lose his roster spot less than one month later. He spent the majority of the 2025 season with Triple-A Worcester and should have the chance to contribute as a reliever at some point in 2026 if he sticks with the organization.

Criswell signed a one-year, $800,000 contract with the Red Sox on Thursday, Robert Murray of FanSided.com reports.

EDGE Analysis

Criswell appeared in seven games for Boston in 2025, finishing the regular season with a 3.57 ERA and 1.58 WHIP through 17.2 innings. He put up similar numbers at Triple-A Worcester (3.70 ERA, 1.35 WHIP) before elbow inflammation put an early end to his season in late August. The 29-year-old righty doesn't have any more minor-league options remaining, so he will have to make the Red Sox's Opening Day roster to avoid losing his 40-man spot.