Outfielder Jhostynxon Garcia (MLB’s No. 85 prospect) and right-hander Jesus Travieso are going to Pittsburgh in the deal, while the Pirates are also sending a pair of prospects — left-hander Tyler Samaniego and catcher Adonys Guzman — to Boston.
The clubs have not confirmed the trade, which comes a couple weeks after the Red Sox acquired veteran starter Sonny Gray from the Cardinals.
Oviedo, who is under club control through the 2027 season, has been effective when healthy, posting a career 4.24 ERA across 81 big league appearances (57 starts). The 27-year-old missed the entire 2024 season after undergoing Tommy John surgery, then suffered a lat strain that limited him to nine starts in 2025, when he logged a 3.57 ERA and 42 strikeouts in 40 1/3 innings.