SEATTLE -- Colt Emerson has long been viewed by the Mariners as a massive piece to their long-term plans, and the club is making an unprecedented commitment to the 20-year-old infielder before he’s even reached the Majors.
Emerson, who is MLB Pipeline's No. 7 overall prospect, and the Mariners were finalizing an eight-year, $95 million contract as of Tuesday morning, sources told MLB.com, surpassing the previous high set by the Brewers’ Jackson Chourio at eight years and $82 million.
Emerson's deal also includes a ninth-year club option, a full no-trade clause and escalators that can bring it north of $130 million, as Robert Murray of FanSided originally reported. And it will begin as soon as it’s made official, which was expected later on Tuesday after he undergoes a physical. The Mariners have not confirmed the deal -- which is the latest in this front office’s effort to draft, develop and retain homegrown talent.
If Emerson debuts this season and accrues a full year of service time, this deal would buy up his three years of pre-arbitration -- three years he would’ve been arbitration-eligible and potentially three years of free agency, if the club option is exercised.
Regardless, he’ll be under club control through 2034 if the deal is maxed out. That would take him through his age-28 season, essentially when he’d still be in his prime.
Emerson was the Mariners’ first-round Draft pick in 2023, at No. 22 overall, and has since skyrocketed through their farm system. He went from High-A to Triple-A last season in the Minors and earned legitimate consideration for the big league roster in Spring Training before being sent to Triple-A Tacoma at the end of camp.
COMPLETE MARINERS PROSPECT COVERAGE
And that’s where he will remain, even after the deal becomes official, a source said.
The club does not want to impede Emerson’s player development, and there is no rush to accelerate him to The Show, even with veteran shortstop J.P. Crawford on the injured list with right shoulder inflammation. Crawford, whose five-year, $51 million contract expires this offseason, is slated to begin a rehab assignment with Tacoma later this week.
Emerson has played all three infield positions in the Minors, but he's best at shortstop and has the tools to stick at the premium position. He’s long been expected to be the heir apparent to Crawford, Seattle’s longest-tenured player.
Emerson is already off to a fast start at Tacoma, hitting .357 with a 1.000 OPS over 15 plate appearances, including a homer in the regular-season opener. Over three seasons in the Minors, he’s slashed .288/.398/.445 (.843 OPS) with 23 homers, 130 RBIs and 37 stolen bases.
Because Emerson is agreeing to a pre-debut deal, the Mariners will not be eligible for a Prospect Promotion Incentive (PPI) selection in next year’s MLB Draft, should Emerson go on to win the AL Rookie of the Year Award in 2026. That’s precisely what happened with Julio Rodríguez when he won the honor in ‘22, as Seattle went on to earn a PPI pick and used it to draft Jonny Farmelo (No. 30 overall) -- just behind Emerson in that loaded class.
But the PPI consideration was somewhat of an afterthought in the Mariners’ grander logic on this one -- taking less precedent than locking up what they believe will be a franchise cornerstone long-term.
Emerson will join the likes of Rodríguez and Cal Raleigh as homegrown players that the Mariners have signed long-term extensions. But that approach from the front office has also extended to players it has accrued via trade, such as Crawford, Luis Castillo, Andrés Muñoz and Josh Naylor. They’ve also engaged Logan Gilbert and Bryan Woo about extensions.
The Mariners, who are legitimate World Series contenders, now have Emerson, Naylor, Raleigh and Rodríguez all locked up through 2030. And this list doesn’t include Cole Young, whom the club is bullish about being its long-term second baseman opposite Emerson and who’s off to a strong 2026.
Moreover, this isn’t the first time that the club has agreed to a lucrative deal before a player had made their MLB debut.
Seattle signed first baseman Evan White to a six-year, $24 million contract in November 2019 before he’d reached the Majors, though injuries limited White to just 84 games from 2020-21 and he was eventually traded to the Braves in the ‘23-24 offseason and hasn’t played in the Majors since.
The Mariners also made an even richer offer than White to outfielder Jarred Kelenic in the ‘20-21 offseason but Pipeline’s former No. 4 overall prospect turned them down. Kelenic was included in that trade with White to Atlanta and is now in the White Sox organization in the Minors.