Blue Jays move Max Scherzer back to IL with back spasms hours before Fenway start

Max Scherzer’s time back in Toronto’s rotation ended quickly. With Wednesday’s matchup looming at Fenway Park, the Blue Jays placed the veteran starter back on the injured list due to back spasms, according to the team’s injury update issued by MLB. The move came just hours before Scherzer was scheduled to take the mound against Boston, a start that was positioned as a key test for Toronto’s pitching staff in a high-profile setting.

For Scherzer, the setback is not a one-off. The placement marks his second trip to the injured list this season. Earlier in the year, he also dealt with an IL stint, and the current issue continues the same theme: a recurring physical concern that is forcing Toronto to shuffle plans at the top of its rotation.

Scherzer’s return, at least on paper, had promised a stabilizing presence for the Blue Jays. The veteran right-hander had been slated for a crucial start against the Red Sox, a matchup that carries its own intensity because of the proximity and rivalry between the American League East clubs. Instead, Toronto’s staff will have to absorb a late change and adjust the order and workload of the next wave of starters and relievers.

Toronto will now be left managing both the immediate pitching need and the longer-term question of readiness. Back spasms are often treated conservatively, and teams typically prioritize symptom control over rushing a return. While the Blue Jays’ release confirms the IL placement, it does not provide additional public clarity in this reporting window on a timetable, meaning the next few days of roster management will likely be shaped by day-to-day evaluations.

For Boston, the change also affects the matchup calculus. Scherzer being pulled from the original plan means the Red Sox will see a different starter, altering how the lineup can be prepared for the specific pitch mix and approach that a veteran like Scherzer brings. In American League East games, those differences can matter, especially when managers are trying to capitalize on early innings and establish bullpen leverage later.

Toronto’s broader season context also tightens with each rotation disruption. Scherzer is one of the more experience-driven arms on the roster, and when a starter is removed late, it can compress the rotation schedule and force additional bullpen usage in the short term. Even without knowing the exact replacement pitcher yet, the immediate impact is clear: the Blue Jays must protect the game’s middle innings and preserve their options for a quick turnaround if the schedule requires it.

What to watch next is how the Blue Jays respond at both the roster and strategy levels. The first question will be who receives the spot in the rotation for the Fenway game and how Toronto structures its bullpen plan in the absence of Scherzer. The second is whether the injured list stint remains brief or stretches longer, which would further test the depth of the pitching staff as June continues.