Seattle Mariners

The Mariners signed Adam Seminaris to a minor league contract.

Fantasy Impact: Seminaris previously spent time in the Brewers and Angels organizations. He'll add pitching depth for Seattle.

The Mariners signed Luis Castillo to a minor league contract.

Fantasy Impact: Not to get mistaken with Seattle starter Luis Castillo. He will compete for a depth role in the Mariners bullpen after pitching in Japan.

The Mariners signed Jack Lopez to a minor league contract.

Fantasy Impact: Lopez appeared in 27 games with the Angels last season. He'll add depth in the infield for Seattle.

The Mariners acquired Will Klein from the Athletics for international bonus pool money.

Fantasy Impact: Klein was designated for assignment by Oakland over the weekend. He'll compete for a depth role in the Mariners bullpen.

The Mariners designated Tyler Jay for assignment.

Fantasy Impact: Jay was removed from the Mariners 40-man roster to make room for the acquisition of Will Klein. He'll land on the waiver wire as a result.

The Mariners signed Shintaro Fujinami to a minor league contract.

Fantasy Impact: Fujinami has shown flashes throughout his young career, but he has mostly struggled across the past two seasons. He'll compete in spring training for a role in the Mariners Opening Day bullpen.

The Mariners sent Nick Raposo outright to Triple-A Tacoma.

Fantasy Impact: Raposo went unclaimed on waivers after he was designated for assignment. He'll add depth behind the plate for the Mariners organization.

The Mariners sent Austin Kitchen outright to Triple-A Tacoma.

Fantasy Impact: Kitchen went unclaimed on waivers after he was designated for assignment. He'll add depth in the bullpen for the Mariners organization.

The Mariners designated Samad Taylor for assignment.

Fantasy Impact: Taylor was DFA'd to make room for the acquisition of Blake Hunt. He'll look to draw some interest on the waiver wire.

The Mariners signed Dylan File to a minor league contract.

Fantasy Impact: File spent last season in the Diamondbacks organization. He'll compete to work his way up the Mariners minor league system to the majors.

The Mariners signed Donovan Solano to a one-year, $3.5 million contract.

Fantasy Impact: Solano hit .286 with the Padres last season across 309 at-bats. He'll add some needed depth in the infield for Seattle where he could see some starts at any of first base, second base or third base. He likely won't see enough of a consistent opportunity to be on the fantasy radar.

Trent Thornton and the Mariners avoided arbitration, agreeing to a one-year, $2 million deal. (Source: Daniel Kramer on Twitter)

Fantasy Impact: Thornton posted a 3.61 ERA across 72 1/3 innings last season. He'll continue to hold a middle relief role in the Mariners bullpen.

The Mariners and Cal Raleigh avoided arbitration, agreeing to a one-year, $5.6 million contract. (Source: Daniel Kramer on Twitter)

Fantasy Impact: Raleigh remains one of the top power-hitting and defensive catchers in baseball. He likely won't offer a great batting average, but he can make up for it in other areas.

The Mariners and George Kirby avoided arbitration, agreeing to a one-year, $4.3 million deal. (Source: Daniel Kramer on Twitter)

Fantasy Impact: Kirby has remained one of the more steady starters in baseball over the past few seasons. He'll remain part of one of the best starting rotations in the MLB.

The Mariners and Logan Gilbert avoided arbitration, agreeing to a one-year, $7.625 million deal. (Source: Jon Heyman on Twitter)

Fantasy Impact: It turned out to be a bargain for Seattle compared to expectations. Gilbert is coming off a breakout year, posting a 3.23 ERA across 208 2/3 innings.

Randy Arozarena and the Mariners avoided arbitration, agreeing to a one-year, $11.3 million deal.

Fantasy Impact: Arozarena was acquired by Seattle at the trade deadline last season. He showed flashes of power, but it was a down year for him overall at the plate. He'll look to bounce back this year with a full season in Seattle.

The Mariners claimed Hagen Danner off waivers from the Blue Jays. (Source: Daniel Kramer on Twitter)

Fantasy Impact: Danner had been designated for assignment by Toronto last month. He'll compete for a depth role in the Mariners bullpen in spring training.

The Mariners signed Josh Fleming to a minor league deal.

Fantasy Impact: Fleming made 25 appearances last season for the Pirates. He finished last season in Triple-A Tacoma and will likely open the upcoming season in Tacoma as well.

Matt Brash is expected to make his return to the Mariners bullpen by the end of April. (Source: Adam Jude on Twitter)

Fantasy Impact: Brash missed all of last season after undergoing Tommy John surgery. He should return to his high-leverage role when he is healthy.

The Mariners signed Drew Pomeranz to a minor league deal.

Fantasy Impact: The veteran last pitched in the MLB in the 2021 season for the Padres. He will compete in spring training for a roster spot on Opening Day.