Red Sox designate Connor Seabold for assignment

The Red Sox needed to clear a spot on their 40-man roster before making the signing of veteran starter Corey Kluber official on Thursday afternoon. They did so by designating fellow right-hander Connor Seabold for assignment.

Seabold, who turns 27 later this month, was regarded by SoxProspects.com as the No. 22 prospect in Boston’s farm system, which ranked seventh among pitchers in the organization. The Red Sox originally acquired the California native from the Phillies alongside Nick Pivetta in the August 2020 trade that sent relievers Brandon Workman and Heath Hembree to Philadelphia.

For the better part of the last two seasons, Seabold has served as upper-minors rotation depth for the Red Sox. He posted a 3.50 ERA in 11 starts (54 innings) for Triple-A Worcester in 2021 and followed that up by producing a 3.32 ERA in 19 starts (86 2/3 innings) with the WooSox in 2022.

Unfortunately, that success has not translated to the major-league level as of yet. Seabold made his big-league debut in September 2021 and made five additional starts for Boston last season. In those six outings, the righty allowed 25 earned runs on 38 hits, 10 walks, and 19 strikeouts over 21 1/3 cumulative innings of work. That is good for an ERA of 10.55 and FIP of 6.82.

Seabold has dealt with his fair share of injuries in his time with the Red Sox organization. He was sidelined with right elbow inflammation during the early stages of the 2021 campaign and spent time on the injured list with a pectoral strain and right forearm extensor strain in 2022. Perhaps as a result of those arm issues, the 6-foot-2, 190-pound hurler averaged just 92.1 mph on his four-seam fastball in the majors, per Baseball Savant.

With the addition of Kluber, the Red Sox have only further bolstered a starting rotation mix that already included Chris Sale, Nick Pivetta, Garrett Whitlock, Brayan Bello, James Paxton, and Tanner Houck. When you add others like Josh Winckowski, Kutter Crawford, Bryan Mata, Chris Murphy, and Brandon Walter, Seabold undoubtedly became more expandable.

The Red Sox now have the next seven days to either trade, release, or waive Seabold, who has one minor-league option year remaining and could be of interest to other clubs as a result. If he clears waivers, the Red Sox would be able keep Seabold in the organization without committing a 40-man roster spot to him.

Regardless of his fate, though, Seabold becomes the latest in a long line of players to be lopped off the Red Sox’ 40-man roster this winter. He joins the likes of Eduard Bazardo, Yu Chang, Franchy Cordero, Tyler Danish, Jeter Downs, Eric Hosmer, and — most recently — Darwinzon Hernandez.