Joe Mantiply gave John Schneider another bullpen problem Thursday, with the Blue Jays lefty now headed for knee surgery.

Toronto's latest setback is arthroscopic surgery on Mantiply's left knee after what Schneider described as a need to clean up damage. The club does not expect the procedure to be season-ending, but it still pulls a useful reliever off the board for an unknown stretch.

That uncertainty is the part that bites. Sportsnet reported there is no operation date yet and no firm recovery timeline, which leaves Toronto waiting on both the procedure and the calendar.

Mantiply originally went on the injured list on May 19 with what the Blue Jays called left knee inflammation. A second opinion changed the path from simple rest to surgery.

That is a real loss because Mantiply had quietly been one of Toronto's better relievers. He carried a 2.04 ERA and a 2.84 FIP through 17 appearances before the knee shut him down.

He also had carved out a clean role as the second left-hander in the bullpen behind Mason Fluharty after Brendon Little was sent to Triple-A Buffalo. That kind of job matters on a staff that already has too many moving parts.

Why Joe Mantiply's surgery matters now

Toronto is not just losing a depth piece. It is losing one of only a few left-handed options on a bullpen that has already been dragged around by injuries on both the rotation side and the relief side.

That puts more weight on Adam Macko right away. Jays Journal noted that Macko now figures to get an extended look, and his first 7 appearances with Toronto have gone about as well as the club could have hoped, with 0 runs allowed, 5 strikeouts, and 6 innings under his belt.

The problem is that Macko is still new to this role, and Fluharty is better suited as a second lefty than a full bullpen answer on his own. That is why Mantiply's absence changes the shape of the whole group instead of only one roster line.

It also pushes Toronto a little harder toward the trade market, even if the timing is awkward. The same Jays Journal report argued the Blue Jays will almost certainly look for another left-handed reliever, but that kind of move may not come until much closer to the deadline.

That leaves Schneider with the same answer he has had too often this season: make do. The Blue Jays need Macko to keep holding up, need Fluharty to keep taking important outs, and need the rest of the bullpen to avoid another hit while Mantiply is out.

And that is why this surgery lands harder than it first sounds. Joe Mantiply was not just filling space. He was giving Toronto good innings, left-handed balance, and one more reliable option in a season that keeps taking those away.

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