The Red Sox have outrighted right-handers Isaiah Campbell and José De León to Triple-A Worcester, according to their transactions tracker at MLB.com. That indicates both players cleared waivers in recent days.
There was no previous indication that either player had been designated for assignment but these kinds of moves are common at this time of year, as most clubs are facing upcoming roster crunches. The 60-day injured list goes away five days after the World Series, meaning several players need to retake 40-man spots. Some will also become free agents but many clubs often end up with more than 40 players in the mix. RosterResource estimates the Sox at 43 players, even with the assumption that Alex Bregman will opt out while Lucas Giolito and Liam Hendriks will have their mutual options declined. These two outrights drop them to 41, meaning another move will still be required at some point in the coming weeks, unless Trevor Story also opts out.
De Leon’s removal isn’t surprising. He spent 2025 with the Sox on a minor league deal. He was added to the 40-man roster on the last day of the regular season. The Sox had already clinched a playoff spot and had nothing on the line. De León was given the ball to soak up some innings, allowing Boston to save some of their other arms for the playoffs. He tossed 6 2/3, allowing three earned runs on eight hits and three walks while striking out eight.
A former top prospect, his career has been severely sidelined by injuries, including two Tommy John surgeries. He debuted way back in 2016 but has just 72 big league innings under his belt. He logged 75 1/3 innings for Worcester in 2025 with a 6.93 earned run average, 24.6% strikeout rate and 14.4% walk rate. Players can reject an outright assignment and elect free agency if they have three years of big league service or a previous outright. De Leon qualifies on both accounts and should hit the open market soon.
This is Campbell’s first career outright and he doesn’t have three years of big league service. However, he was non-tendered after 2024, which should make him eligible for minor league free agency. The righty has 43 innings of big league experience. Most of that came with the 2023 Mariners. He was traded to the Red Sox going into 2024 for Luis Urías. The Sox have used him sparingly in the two seasons since, with fewer than ten appearances in each campaign. As mentioned, he was non-tendered after 2024 but then was re-signed via a minor league deal. He was added back to the 40-man in July.
His minor league track record is good but his results backed up this year. From 2021 to 2024, he tossed 105 2/3 innings on the farm with a 2.04 ERA, 29.6% strikeout rate and 7.1% walk rate. This year, it was 57 2/3 innings with a 3.90 ERA, 18.1% strikeout rate and 8.1% walk rate.
Photo courtesy of Bob DeChiara, Imagn Images
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