Red Sox To Sign Ranger Suárez

The Red Sox are going to sign left-hander Ranger Suárez, reports Jon Heyman of The New York Post. It’s a five-year deal worth $130MM, reports Bob Nightengale of USA Today. There are no deferrals and no opt-outs, per Nightengale. The pact does not include a no-trade clause, per Chris Cotillo of MassLive. The Sox have a full 40-man roster and will need to make a corresponding move in order to accommodate the Boras Corporation client.

The Sox came into the offseason with a rotation headlined by Garrett Crochet, followed by a notable gap to their other starters. They had a lot of options for back-end types and depth but were looking to bolster the front end.

“Because of the depth that we’ve built up over the last couple of years, we feel pretty good about just overall starting pitching, maybe No. 3-ish through No. 10-ish,” was how chief baseball officer Craig Breslow framed the situation in November. “And that’s not to take away from guys who are certainly capable of doing more, and more just to say I don’t think we’re going to spend a ton of time trying to add a No. 4, No. 5 starter.”

Since then, Breslow has made a couple of moves to alter that rotation group. He acquired Sonny Gray from the Cardinals and Johan Oviedo from the Pirates. They subtracted a bit from the depth by including Richard Fitts in the Gray deal and Hunter Dobbins in the Willson Contreras swap.

Gray is arguably the kind of #2 starter the club was looking for. His 4.28 earned run average in 2025 has some Boston fans disputing that assessment but he has a 3.63 ERA, 27% strikeout rate, 6.1% walk rate and 44.6% ground ball rate in 531 innings dating back to the start of 2023. FanGraphs ranks him fifth in wins above replacement among pitchers in that time, behind only Tarik Skubal, Zack Wheeler, Logan Webb and Cristopher Sánchez.

Since the Gray deal, Boston has seemingly been more focused on upgrading its lineup and position player mix, targeting infielders like Alex Bregman, Bo Bichette, Ketel Marte, Brendan Donovan and Isaac Paredes.

The club has hit a bit of a wall there. Bregman has signed with the Cubs. The Diamondbacks have reportedly taken Marte off the market. The Astros don’t seem to have much interest in moving Paredes. Bichette is still a free agent but it’s unclear if the Sox would be willing to go to the lengths necessary to sign him. Donovan should still be available but the Sox haven’t met their asking price, at least not yet.

In the wake of Bregman’s agreement with Chicago, Rob Bradford of WEEI as well as Sean McAdam and Chris Cotillo of MassLive suggested Boston could switch their focus to starting pitching. Earlier today, Bradford suggested the club was getting more aggressive on the trade market but they have gone to free agency instead.

The contract is notable on a few fronts. For one, Breslow has generally avoided long-term free agent deals since becoming Boston’s chief baseball officer. Coming into today, his longest deal for a free agent was to give Bregman three years, which turned into a one-year relationship when Bregman opted out. The Sox came into today as the only one of the 30 major league clubs to not have signed a free agent this winter. This deal will be a new benchmark for Breslow in terms of years and guarantee given to a free agent, as well as erasing Boston’s status as the only team not to spend money on free agency this offseason.

It’s also a notable deal for Suárez in a few different ways. For one thing, he was a fairly low-profile international signing of the Phillies at the start of his professional career, securing a bonus of just $25K. As he has become a major leaguer, he has pushed his salary up in arbitration with his strong results but his lack of volume has limited him. He just made $8.8MM in his final year of arbitration, relatively modest by modern standards, but will now be securing a much bigger payday than ever before.

Speaking of his strong results but limited overall workload, that impacted the view of his market coming into this winter. Broadly speaking, Suárez has been really good on a rate basis but he doesn’t throw especially hard and has dealt with some nagging injuries, impacting the overall quantity of his contributions.

He first became a full-time starter for the Phillies in 2022 and held a rotation job for four years. Over that span, he logged 588 1/3 innings with a 3.59 ERA. His 21.9% strikeout rate was around league average. His 7.5% walk rate was solid and his 50.8% ground ball rate quite good. He also earned a reputation as a cold-blooded playoff contributor, giving the Phils 42 2/3 postseason innings with a 1.48 ERA.

But his velocity has never been huge and has been trending down. His four-seam fastball averaged a bit over 93 miles per hour in 2022 and 2023. That dropped to 91.8 mph in 2024 and 91.3 mph last year. His primary pitch, his sinker, averaged just 90.1 mph last year.

He also still hasn’t really pitched a full big league season. He hasn’t had any major injury concerns but has had scattered issues over the years, with lower back problems being a recurring thorn in his side. Thanks to those sporadic health problems, he’s never hit the 30-start mark or the 160-inning plateau in any season as a big leaguer.

Given his clear skills but also his question marks, MLBTR predicted Suárez for a five-year, $115MM deal at the beginning of the offseason. The top of the free agent starting pitching market has been slow to move this winter. Dylan Cease and the Blue Jays quickly found each other but it’s been a bit tepid otherwise. No other starter apart from Cease signed a deal longer than than three years or for more than $75MM. Tatsuya Imai settled for three years and $54MM, significantly below the expectations from the outset of the offseason.

As Suárez and Framber Valdez lingered unsigned into the new year, it was fair to wonder if they would meet the initial expectations. But with this deal, Suárez has not only met MLBTR’s prediction but has surpassed it. He has matched the length with an extra $3MM in terms of average annual value.

More to come.