Red Sox bet on upside, trade prospects to bring in Johan Oviedo as rotation transformation intensifies; how does he fit moving forward?

For the second time in two weeks, the Red Sox made a notable addition to their pitching staff, acquiring right-hander Johan Oviedo from the Pittsburgh Pirates on Tuesday as part of a five-player trade. Boston also received left-hander Tyler Samaniego and catching prospect Adonys Guzman, sending outfielder Jhostynxon Garcia and right-hander Jesus Travieso to Pittsburgh. The move continues an active and strategically aligned offseason for chief baseball officer Craig Breslow, who has emphasized building a deeper, more physical, and more playoff-oriented pitching infrastructure.

Oviedo, 27, arrives in Boston following a year in which he returned from Tommy John surgery and battled through inconsistent results in nine starts for the Pirates. His stat line—a 3.57 ERA, 4.92 FIP, and 1.22 WHIP across 40 1/3 innings—offers only a partial picture of a pitcher still attempting to rediscover both form and durability. Despite dealing with lingering effects from surgery and a right lat strain that delayed his return, Oviedo managed to record a career-best 24.7 percent strikeout rate, showing clear signs that his raw stuff remains intact.

The right-hander’s path back to reliability extends beyond a single season. Prior to his injury, Oviedo threw 177 2/3 innings across 32 starts in 2023, striking out 158 batters. The Red Sox have increasingly targeted pitchers with size, velocity, and extension, hoping their revamped pitching development group under Breslow can refine command and pitch sequencing. Oviedo fits that mold precisely.

At 6 feet 6 inches and 275 pounds, he delivers pitches with a 7.4-foot extension—ranking in the 98th percentile, per Statcast—which helps his fastball (averaging 95.5 mph) play up in the zone. He pairs it with a slider, curveball, sinker, and changeup, giving him a deep arsenal that has often looked more effective than his results would suggest. The question, as it has long been, centers on consistency: Oviedo’s walk rate has hovered at levels that prevent him from working deep into games, and stretches of erratic command have stalled his progress.

WHERE DOES OVIEDO FIT?

Where Oviedo fits in the Red Sox’ plans remains an open discussion. Boston believes his ceiling is higher than that of a traditional depth arm, but with several rotation candidates vying for roles, he could also be considered for bullpen work. In 14 career relief appearances, he has posted a 2.16 ERA with a .215 opponents’ batting average, though he has not pitched out of the bullpen since 2022, when he was still with the Cardinals. His contractual situation adds further nuance: Oviedo has two years of arbitration control remaining and one minor league option. However, he is 93 service days shy of reaching five full years of major league service time. Once he crosses that threshold, the Red Sox would need his consent to option him to the minors.

If utilized as a starter, Oviedo enters a crowded and increasingly complex rotation picture. Boston, already busy this offseason, traded for Sonny Gray last week, adding a veteran arm expected to slot behind Garrett Crochet. They also have Brayan Bello, Kutter Crawford, Patrick Sandoval, Payton Tolle, Connelly Early, and Kyle Harrison in the mix. The accumulation of depth could position Boston to make another significant move, potentially leveraging pitchers from this group in pursuit of a higher-end, playoff-caliber starter Breslow has publicly targeted.

At the GM meetings in November, Breslow signaled the club’s intent to aim higher than back-end options.

“I don’t think we’re going to spend a ton of time trying to add a No. 4 or No. 5 starter,” he said on Nov. 10. “If we’re going to make a starting pitching addition, it should be somebody who can pitch at the front of a rotation and start a playoff game for us.”

Oviedo is not necessarily that pitcher today, but Boston believes he could grow into a meaningful piece, especially if his command stabilizes and his post-surgery trajectory continues upward.

GARCIA HEADLINES TRADE FOR PIRATES

The cost to acquire him was not insignificant. Garcia, 22, ranked as the Red Sox’ No. 6 prospect by Baseball America and made his major league debut this past season. He appeared in seven games, going 1 for 7, before returning to Triple-A Worcester. His offensive production in the minors, however, continued to impress. Between Double-A Portland and Worcester, Garcia hit .267/.340/.470 with 21 home runs and 75 RBIs in 114 games. His bat speed and burgeoning power made him one of the system’s more intriguing long-term position players.

But Garcia faced a difficult path to everyday at-bats in Boston. The Red Sox outfield remains crowded, with Jarren Duran, Wilyer Abreu, and Ceddanne Rafaela all needing regular playing time and top prospect Roman Anthony who made his debut this season, will be playing everyday. Garcia, affectionately nicknamed “The Password” by fans, saw his opportunity squeezed further. In Pittsburgh, he should compete for a corner outfield spot and could be part of the team’s long-term core. The Pirates will have him under club control for six seasons and have multiple minor league options to manage his development.

Travieso, 18, also heads to Pittsburgh. A fellow Venezuelan and the Red Sox’s No. 16 prospect, he brings a lively 94-96 mph fastball that can touch 100 along with a slider and developing changeup. His 3.06 ERA and 90 strikeouts across 64⅔ innings between the Florida Complex League and Low-A Salem last season underscored his promise, though his smaller 5-foot-11 frame has led some evaluators to project him as a future reliever.

In addition to Oviedo, Boston added two players who could contribute sooner. Samaniego, a 26-year-old left-hander, provides needed bullpen depth after the trades of Chris Murphy and Brennan Bernardino. His fastball reached 97 mphlast season, and he recorded a 3.99 ERA across four minor-league levels after returning from internal brace surgery. His inclusion gives the Red Sox another power lefty as they reshape their relief corps.

Guzman, 22, continues a clear organizational trend. The Red Sox have added multiple catchers this offseason—including Ronny Hernandez and 2025 draft pick Luke Heyman—in an effort to strengthen what was considered the thinnest position in the system. Guzman hit .328/.411/.496 in his first professional season and was described by Baseball America as a “glove-first catcher” with pull-side power and one of the strongest throwing arms in his draft class.

The trade also prompted the Red Sox to designate right-hander Cooper Criswell for assignment. Criswell, who signed a guaranteed $800,000 contract earlier this offseason, spent most of 2025 with Triple-A Worcester and posted a 4.00 ERAacross two seasons with Boston. He will now go through waivers, and if unclaimed, he could elect free agency, but with his salary guaranteed, he could also accept an outright assignment to Triple-A. 

The move creates another opening on Boston’s 40-man roster, offering flexibility ahead of next week’s Rule 5 Draft as the club continues what has become one of the more active and ambitious offseasons in the league.