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One of the first major dominoes of the MLB offseason appeared to fall on Sunday night.
All-Star first baseman Josh Naylor agreed to a five-year contract with the Seattle Mariners, keeping him with the team that traded for him through the 2025 season, according to multiple reports.
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Seattle Mariners first baseman Josh Naylor (12) singles against the Toronto Blue Jays during the fourth inning during game five of the ALCS round of the 2025 MLB playoffs at T-Mobile Park on Oct. 17, 2025. (Steven Bisig/Imagn Images)
Naylor and the Mariners are reportedly finalizing the deal. The team has not officially announced the signing. He became a free agent shortly after the Toronto Blue Jays swept the Mariners in the American League Championship Series.
Seattle acquired Naylor on July 24 for Brandyn Garcia and Ashton Izzi. He played in 54 games for the Mariners, hitting nine home runs and recording 33 RBI. He hit .299 with an .831 OPS.
Naylor’s presence in the Mariners’ lineup helped bolster it as Seattle climbed its way to the postseason. Seattle won the American League West division with a 90–72 record.

Seattle Mariners first baseman Josh Naylor (12) hits an RBI single against the Toronto Blue Jays in the first inning during game seven of the ALCS round of the 2025 MLB playoffs at Rogers Center on Oct. 20, 2025. (John E. Sokolowski/Imagn Images)
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He had three home runs in the ALCS against the Blue Jays. He hit .417 with a 1.273 OPS.
Mariners manager Dan Wilson spoke highly of Naylor’s contribution to the team.
“You need that intensity. You need that drive,” Wilson said. “Also, I think his drive to win is incredible. And that’s what you need from all your guys and that’s a big part of what he brought to this club.”
Naylor started his career with the San Diego Padres, but spent five of his seven years in the majors with the Cleveland Guardians.

Seattle Mariners first baseman Josh Naylor (12) talks with third baseman Eugenio Suarez (28) in the dugout before game six against the Toronto Blue Jays in the ALCS round of the 2025 MLB playoffs at the Rogers Center on Oct. 19, 2025. (John E. Sokolowski/Imagn Images)
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He is a lifetime .269 hitter with 104 career home runs.



