Mariners re-sign Naylor to 5-year deal reportedly worth $92.5M

Josh Naylor is staying in Seattle.

The Mariners announced Monday that they've re-signed the one-time All-Star first baseman to a five-year contract.

The agreement is worth $92.5 million, includes a full no-trade clause, and contains no deferred money, a source told ESPN's Jeff Passan. Naylor also gets a $6.5-million signing bonus, Robert Murray of FanSided reports.

"I'm going to be a Mariner again, and I couldn't be more excited," Naylor said in a statement. "From the moment I arrived, everyone in the organization welcomed and helped me. The players brought me in and loved my game right away, and the fans were incredible. ... I can't wait to continue to play with these guys and bring the city a championship."

Naylor was an immediate fit in Seattle after being acquired from the Arizona Diamondbacks in a July trade. The 28-year-old posted an .831 OPS with nine homers and 33 RBIs and stole 19 bases without being caught in 54 games following the trade. His efforts helped the Mariners win their first division title since 2001.

Overall, he hit .295/.353/.462 with 20 homers, 92 RBIs, and a career-best 30 steals across 147 total games in 2025.

Naylor excelled in the playoffs, slashing .340/.392/.574 with three homers and five RBIs during the Mariners' run to the ALCS. The majority of that production came versus his hometown Toronto Blue Jays in the championship series, when Naylor went 10-for-24 during his team's seven-game series loss.

Re-signing Naylor shores up what had been a significant hole at first base for the Mariners. He also gives them another power bat behind AL MVP runner-up Cal Raleigh.

The Canadian is a lifetime .269/.329/.447 hitter with 104 homers and 435 RBIs across parts of seven big-league seasons with Seattle, Arizona, the Cleveland Guardians, and the San Diego Padres. Naylor was an All-Star with the Guardians in 2024.