Garrett Crochet Hits the IL With Shoulder Inflammation, and Boston's Already-Fragile Rotation Is Crumbling

As ESPN reported, the Boston Red Sox placed left-hander Garrett Crochet on the 15-day injured list Tuesday with inflammation in his pitching shoulder, a move that strips an already-reeling franchise of its most important arm. The timing is brutal: Boston sits last in the AL East at 12-18, fired manager Alex Cora and multiple coaches over the weekend, and now watches its $200 million ace head to the shelf with an injury that carries no clean timetable.

Crochet's 2026 has been a mess even before this diagnosis. The 26-year-old two-time All-Star posted a 6.30 ERA across six starts, including a 10-run catastrophe in Minnesota that stands as the worst outing of his career. The one exception — six shutout innings against Baltimore last Saturday — came immediately before the front office blew up the coaching staff. He reported no discomfort after that Orioles start, which makes this shoulder flare-up feel like it emerged from somewhere below the surface. Shoulder inflammation in a power left-hander is a phrase that deserves serious respect. It can mean two weeks. It can mean two months. The Red Sox aren't saying, and that ambiguity alone should move markets.

Boston now has both Crochet and Sonny Gray (hamstring) on the IL simultaneously, with no named replacement for Crochet's scheduled Friday start. Utility man Nate Eaton was recalled from Triple-A Worcester to fill the roster spot — a depth move, not a solution. Whatever the rebuilt coaching staff rolls out Friday in Crochet's place will be a backend arm stepping into an ace's slot, almost certainly against a lineup that will exploit the matchup.

For bettors, the immediate read is straightforward: the Red Sox team total and opposing team totals shift meaningfully the moment Crochet's name is scratched. Boston's rotation ERA was already climbing before this move; now it's a genuine liability. Fade Boston's run prevention across the next two-plus weeks. The Friday start is the clearest spot — an unannounced replacement arm in an away game is a gift for over bettors on the opposing team total. Longer term, any Crochet strikeout props posted in anticipation of his return should be treated with extreme skepticism until the club provides a clean bill of health. Shoulder inflammation and elite swing-and-miss velocity do not coexist quietly.

The broader Boston picture is deteriorating fast. A last-place team that just fired its manager, lost two rotation starters to injury, and has no clear answers at the top of its pitching staff is a franchise in triage mode. Until Crochet returns and demonstrates his stuff is intact, the Red Sox are a team to bet against — not around.