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Gilbert (0-1) took the loss against the Yankees on Tuesday, allowing five runs on seven hits and three walks while striking out six batters over 5.1 innings.
Gilbert retired the first two batters he faced Tuesday, but three straight Yankees hits resulted in a pair of first-inning runs. The right-hander proceeded through the next four frames without falling further behind, but he imploded in the sixth, allowing four of the five batters he faced in that inning to reach base (on two doubles, a single and a walk) before being pulled. Overall, Gilbert threw just 54 of 95 pitches for strikes, and his three walks tied the most he recorded in any game last season. Gilbert did rack up 14 whiffs and now has 13 punchouts across 10.2 innings on the campaign, but he's also carrying a 6.75 ERA and 1.41 WHIP through two starts.
The Mariners designated Loutos for assignment Tuesday, Adam Jude of The Seattle Times reports.
The move opens up a 40-man roster spot for Colt Emerson, who inked an eight-year, $95 million extension earlier Tuesday. Loutos failed to earn a spot on the Mariners' Opening Day roster after allowing seven runs (six earned) on seven hits across three innings during Cactus League action.
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Mariners' Dominic Canzone: Working in platoon
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Canzone is not in the lineup for Tuesday's game against the Yankees.
The 28-year-old clubbed two solo homers Opening Day but has otherwise begun the season 1-for-7 with a double. Southpaw Max Fried is taking the mound Tuesday for the Yankees, so Canzone will take a seat in favor of Rob Refsnyder as the pair operate in a platoon at designated hitter.
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Mariners' Luke Raley: Remaining in platoon
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Raley is out of the lineup for Tuesday's game against the Yankees.
Yankees lefty Max Fried is the third southpaw starter the Mariners have faced this season, and Raley has come off the bench in each game. Raley has a four-game hit streak to begin the campaign and has gone 4-for-14 with three homers and six RBI. Victor Robles is starting in right field and batting seventh Tuesday.
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Mariners' Matt Brash: Earns win Monday
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Brash (1-0) earned the win Monday over the Yankees, allowing one hit while logging a strikeout in a scoreless inning.
Brash kept the Yankees off the board in the top of the ninth inning, working around a Giancarlo Stanton one-out double before the Mariners delivered a walk-off win in the bottom half of the frame. Brash has held opponents scoreless through his first two appearances (two innings) this season, allowing two hits and no walks. The right-hander is a key high-leverage option for Seattle ahead of closer Andres Munoz. Brash posted a 2.47 ERA with a 1.25 WHIP and 58:18 K:BB in 47.1 regular-season innings last year, totaling four saves and 21 holds.
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Mariners' Cole Young: Three hits Monday
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Young went 3-for-4 with a double and an RBI in Monday's 2-1 win over the Yankees.
Young opened the scoring Monday with a two-out single off Ryan Weathers in the second inning, tallying his fourth RBI through five games this year. Young has carried over his strong spring training performance into the regular season -- he's now 6-for-18 (including 3-for-6 against left-handed pitching) with a home run as he's settled into an everyday role at second base.
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Mariners' Ryan Sloan: Opening age-20 season at Double-A
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Sloan is opening the season with Double-A Arkansas, Daniel Kramer of MLB.com reports.
Few prospects generated more rave reviews this spring than Sloan, whose already plus fastball jumped a couple ticks and now sits around 97 mph. Sloan, who could be the game's top pitching prospect in a couple months, only made three starts at High-A last year, so this is a big vote of confidence. Per the report, the initial plan was to assign Sloan to High-A Everett, but the calculus changed after he made such a strong impression this spring. The less volatile weather conditions in Arkansas compared to the Pacific Northwest in April also factored into the decision. What makes the assignment even more notable is that the Mariners have a track record of jumping their best pitching prospects from Double-A to the majors, bypassing the Pacific Coast League. Kade Anderson, the Mariners' other premium pitching prospect, is also opening the year at Double-A.
Anderson is opening the season with Double-A Arkansas, Daniel Kramer of MLB.com reports.
Most of the top college arms get assigned to High-A for their first full season, so while this assignment may not be a big surprise, it is notable. Per the report, the initial plan was to assign Anderson to High-A Everett, but the calculus changed after Anderson made such a strong impression this spring. The less volatile weather conditions in Arkansas compared to the Pacific Northwest in April also factored into the decision. What makes the assignment even more notable is that the Mariners have a track record of jumping their best pitching prospects from Double-A to the majors, bypassing the Pacific Coast League. Ryan Sloan, the Mariners other premium pitching prospect, is also opening the year at Double-A.
Mariners' Colt Emerson: Inks $95 million contract extension
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The Mariners signed Emerson to an eight-year, $95 million contract extension Tuesday, Robert Murray of FanSided.com reports.
The deal includes a club option for a ninth year and can top $130 million if all incentives are reached. It's a record contract for a player yet to reach the majors. Emerson came close to winning a roster spot with the Mariners in spring training and now, with a new long-term contract, is a good bet to be promoted to the big club sooner rather than later, though he will remain at Triple-A Tacoma for now, per Ryan Divish of The Seattle Times. J.P. Crawford (shoulder) is on the 10-day injured list with a right shoulder injury that's nagged at him since the start of spring training and faces an uncertain timetable. Leo Rivas has been filling in at shortstop for Seattle, but the club could eventually look to Emerson to fill that void. Emerson, 20, slashed .285/.383/.458 with 16 homers and 14 steals over three levels in the minors in 2025 and is 5-for-14 with a home run in his first three games at Tacoma in 2026.
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Mariners' Cal Raleigh: Delivers walk-off single
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Raleigh went 1-for-2 with a walk-off RBI single in Monday's 2-1 win against the Yankees.
After striking out in his first at-bat as a pinch hitter, Raleigh came through in the clutch, ripping a one-out single down the line that got past a diving Ben Rice at first base and allowed the winning run to score. While it's far too early to draw big conclusions, the timely hit could help the 29-year-old catcher build momentum during an uneven start to the year after limited action in the World Baseball Classic following his monster 2025 campaign in which he eclipsed 60 homeruns and finished just shy of an AL MVP.
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Mariners' Luis Castillo: Dominates Yankees, reaches 1500 Ks
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Castillo did not factor into the decision Monday against the Yankees, allowing two hits and two walks while striking out seven over six scoreless innings.
Castillo was in complete control, holding the Yankees hitless until the fourth inning and limiting them to just two hits overall. The right-hander generated 17 whiffs and leaned heavily on his primary arsenal, throwing 87 of his 95 pitches as either a fastball or slider. Castillo had hitters fooled all night, but his final strikeout was a milestone moment, as he got Aaron Judge to swing through an inside breaking ball for his 1,500th career strikeout before exiting after the sixth inning. The 33-year-old will look to replicate Monday's success in his next scheduled start against the Angels.
Raleigh is not in the starting lineup for Monday's game against the Yankees.
Raleigh is 2-for-15 with one double, one RBI, on stolen base and a 3:10 BB:K across his first 18 plate appearances this season. With Raleigh getting a breather against Yankees left-hander Ryan Weathers, Mitch Garver is getting the start at catcher and hitting sixth.
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Mariners' Cal Raleigh: Doubles Sunday
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Raleigh went 1-for-4 with an RBI double in Sunday's 8-0 win over Cleveland.
Raleigh's sixth-inning double was his first extra-base hit this season. While he does have hits in back-to-back games, it's been a tough start to the year for Raleigh -- he's now 2-for-18 with 10 strikeouts through four games. While it's a safe bet that Raleigh will turn things around, some regression is certainly possible after the catcher's record-setting 2025 campaign, where he slashed .247/.359/.589 with 60 homers, 125 RBI and a career-low 26.7% strikeout rate across 705 regular-season plate appearances.
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Mariners' Randy Arozarena: Two hits Sunday
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Arozarena went 2-for-4 with a double, two RBI and a run scored in Sunday's 8-0 win over the Guardians.
Arozarena has gotten off to a strong start this season, going 4-for-18 with a pair of doubles, five walks and a stolen base through four games. In 2025, the outfielder's first full season with the Mariners, Arozarena slashed .238/.334/.426 with 31 steals and a career-high 27 home runs across 709 regular-season plate appearances.
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Mariners' Cooper Criswell: Grabs three-inning save
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Criswell earned the save in Sunday's 8-0 win over the Guardians, allowing two hits while striking out five over three scoreless innings.
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.
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