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RosterTORAug 19, 2026, 3:25 PM EDTSignal confidence 100%

Blue Jays designate Matt Waldron for assignment two weeks after waiver claim

Toronto moved on from the knuckleballer after he allowed five earned runs in 4 1/3 innings, sending him back to waivers.

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The Blue Jays announced that they have designated right-hander Matt Waldron for assignment, two weeks after claiming him off waivers from the Padres. The corresponding move brought left-hander Brendan Cellucci onto the active roster.

Waldron's second tour through the waiver wire in a month comes after a brief Toronto tenure: 4 1/3 innings, five earned runs allowed, and a roster crunch that left no room for further experimentation with the 29-year-old knuckleballer.

What happened

Toronto claimed Waldron off waivers from San Diego two weeks ago. He appeared in relief for the Blue Jays and allowed five earned runs across 4 1/3 innings. The club moved on, designating him for assignment to clear a 40-man roster spot for Cellucci's selection.

Waldron is out of minor-league options, the same roster constraint that led to his departure from San Diego. With the trade deadline now passed, he will be placed on outright waivers in the coming days.

Why it matters

The knuckleball is baseball's most romantic pitch and its least forgiving roster proposition. When it works, it buys innings cheaply and baffles hitters with physics instead of velocity. When it does not, there is no fallback repertoire, no secondary offering to lean on while the primary one is recalibrated in Triple-A. Waldron's option exhaustion meant Toronto was auditioning him in the major-league bullpen with no safety net beneath him. Five earned runs in 4 1/3 innings closed the audition.

The timing underscores the calculus. The Blue Jays are 72-72, fourth in the AL East and 13.5 games behind the division lead. They sit one game back of the final Wild Card spot, but a one-game deficit in mid-August with a .500 record is not the same as a one-game deficit in late September with momentum. Toronto is evaluating, not optimizing. Waldron's brief stint was a low-cost look at a pitcher who once logged 188 innings across two seasons for San Diego. The look did not warrant a longer commitment.

The numbers

Waldron's major-league track record is modest but real. Over 2023 and 2024, he threw 188 innings for the Padres with a 4.79 earned run average, a 20.6% strikeout rate, and a 6.5% walk rate. Those are back-of-the-rotation figures, the kind that keep a team afloat when injuries or fatigue thin the depth chart.

But the knuckleball's variance showed up in the most recent season. Waldron spent most of last year on optional assignment and posted a 6.67 ERA at Triple-A. That performance, combined with the exhaustion of his final option year, left him on San Diego's roster bubble entering this season. The Padres placed him on waivers; Toronto claimed him; and now he is back where he started, waiting to see if a third organization will take a flier.

Where the club stands

The Blue Jays are 72-72, fourth in the AL East and 13.5 games back of the division lead. They are one game behind the final Wild Card spot and have lost their last game. The roster move reflects a team still searching for answers in the bullpen but unwilling to carry a pitcher whose early returns did not justify the 40-man spot.

Toronto opens a three-game series at Tampa Bay on Wednesday, with Max Scherzer scheduled to start opposite Drew Rasmussen. Shane Bieber is slated to pitch Thursday against Ian Seymour. The Blue Jays then travel to Yankee Stadium for a Friday matchup, with Mason Fluharty set to face Cam Schlittler.

The schedule offers no respite. Tampa Bay is in the thick of its own playoff push, and the Yankees series looms as a measuring stick for a Toronto club that has spent the summer hovering around .500. The bullpen will be tested, and Cellucci's promotion suggests the front office believes he offers more upside than Waldron did in his brief audition.

What we don't know yet

Waldron's next destination is unclear. He will be placed on outright waivers in the coming days, and any of the other 29 clubs can claim him for the waiver price. A team looking for bullpen depth or intrigued by the knuckleball's upside might take a chance, particularly one with a Triple-A affiliate where Waldron could work without occupying a 40-man spot. But his option exhaustion and recent performance make that outcome less certain than it might have been two years ago.

If Waldron clears waivers, Toronto can outright him to the minors or release him. Given that the club just designated him after two weeks, an outright assignment seems unlikely unless the front office believes there is value in keeping him in the organization as non-roster depth. A release would make Waldron a free agent, free to sign a minor-league deal elsewhere or to continue his career in independent ball or overseas.

The broader question is whether the knuckleball still has a place in modern bullpens. Waldron's 188-inning stretch in 2023 and 2024 suggested it could, at least as a long-relief or spot-start option. But the pitch's variance and the lack of a fallback repertoire make it a difficult fit for teams operating with tight roster margins and limited patience for experimentation. Waldron's two-week tenure in Toronto is a case study in that tension.

What to watch

Waldron will be on waivers in the coming days, and the claim period will reveal whether another club sees enough in his track record to take on the roster commitment. If he clears, his next move—outright, release, or minor-league deal—will shape the rest of his season and possibly his career.

For Toronto, the focus shifts to Cellucci and the bullpen's ability to hold up through a difficult stretch of schedule. The Blue Jays are one game out of a playoff spot with a demanding road trip ahead. Every bullpen inning matters, and the decision to move on from Waldron after 4 1/3 innings signals that the front office is prioritizing present performance over the allure of a pitch that once looked like a rotation solution in San Diego.

The knuckleball remains baseball's most charming outlier, a pitch that defies radar guns and scouting reports alike. But charm does not hold a roster spot in August, and Waldron's brief Blue Jays tenure is a reminder that even the most romantic pitch in the game must answer to the same unforgiving arithmetic as every other offering.

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