PITTSBURGH — Misiorowski arm fatigue is now the headline out of Milwaukee, and it’s not the one anybody in the Brewers’ clubhouse wanted heading into the All-Star break. Jacob Misiorowski was scratched from his scheduled start against the Pittsburgh Pirates on Sunday because of arm fatigue, a move that also knocks him out of Tuesday’s All-Star Game in Philadelphia.
It’s a gut-punch of a way to close the first half. Misiorowski entered Sunday as the majors’ ERA leader, and the Brewers had already been navigating a delicate balancing act between letting their 24-year-old ace pitch and protecting an arm that’s thrown more innings than in any stretch of his young career. Now the decision’s been made for them.
Why Misiorowski Arm Fatigue Changes the All-Star Equation
Here’s the twist: Misiorowski was already ticketed to miss pitching in Tuesday’s game at Citizens Bank Park, just not for this reason. Because he was lined up to start Sunday’s series finale at PNC Park — the last day before the break — MLB’s own eligibility rule would have kept him off the mound in Philadelphia regardless. Pitchers who start on that final Sunday can’t throw in the All-Star Game two days later, All-Star selection or not.
That much had been known for over a week. Misiorowski addressed it directly after a rough outing against Cincinnati on July 2, when he allowed a career-high-tying five runs in a loss to the Reds. “I get it,” Misiorowski said. “I get we’re not looking for right now. We’re looking for September, October. It sucks — obviously I want to throw in a game like that — but so be it.”
That was the plan two weeks ago: pitch Sunday, watch the All-Star Game from the sideline as a first-time spectator after logging a scoreless eighth inning in last year’s Midsummer Classic. Sunday’s scratch adds a health wrinkle nobody was bracing for.
A Historic First Half, Interrupted
Whatever the exact roster mechanics turn out to be, there’s no spinning the underlying number. Misiorowski entered Sunday 10-4 with a 1.62 ERA and a 2.11 FIP over 111 innings, the best mark of any qualified starter in baseball. He’d struck out 167 hitters. He’d thrown a 105.5 mph fastball against the Cubs in late June that matched the third-fastest pitch tracked since MLB started measuring velocity in 2008. Across an 11-start stretch through late June, he went 8-2 with a microscopic 0.63 ERA, striking out 105 while walking just 14.
This isn’t a guy limping to the finish line statistically. It’s a guy whose body may finally be sending a bill for how hard he’s been throwing it. Misiorowski has already thrown 104-plus innings in his first full big-league season — pace for something in the neighborhood of 183 if he’d kept making 30 starts, well past the 141⅓ innings he threw last year across the majors, minors and postseason combined. Teams don’t usually get a warning shot before a young power arm hits a wall. Sometimes arm fatigue is the warning shot.
What Comes Next at PNC Park
Sunday’s game was set up as one of the season’s marquee pitching matchups — Misiorowski against Pirates ace Paul Skenes, a rematch of a duel from last June that Misiorowski won with five shutout innings and eight strikeouts. Skenes, working through a down year by his own standards at 7-8 with a 3.58 ERA, was still going to draw a national audience on Peacock for the first-half finale. Now half that marquee is gone, and Milwaukee has to scramble a replacement into the finale of a series it’s trying to close out with a series win before the break. [VERIFY: name of Misiorowski’s replacement starter for Sunday’s game had not been confirmed in available reporting at press time.]
It’s worth remembering the Brewers’ pitching depth has already been stress-tested this month. Kyle Harrison, Milwaukee’s No. 2 starter, was pulled early from his last outing dealing with elbow soreness of his own, something manager Pat Murphy confirmed came from fatigue building over Harrison’s past two starts. Add a temporarily unavailable Misiorowski to that picture, and a rotation that’s carried the best team ERA in baseball this season (3.32 entering the weekend) suddenly looks thinner than it did a week ago.
The Bigger Picture for a First-Place Team
None of this threatens Milwaukee’s standing in the NL Central — the Brewers rolled into the weekend with a comfortable division lead and the second-best record in the majors behind the Dodgers. But a first-place team doesn’t get the luxury of shrugging off arm fatigue in its best pitcher two days before a scheduled break that was supposed to double as extra rest. If anything, the timing helps: Misiorowski gets the All-Star break itself to recover on top of whatever maintenance the Brewers build in around it.
Still, this is exactly the kind of workload flag that front offices watch closely in July, right as trade-deadline conversations start to sharpen. A healthy Misiorowski changes what Milwaukee needs to add before the deadline. A compromised one changes it more.
What to Watch This Week
Expect the Brewers to be conservative here. Misiorowski isn’t currently reported to be facing a lengthy absence, but “arm fatigue” is one of those phrases that means something different depending on imaging results nobody’s seen yet. Until Milwaukee or MLB clarifies whether this is a short scratch-and-rest situation or something that lands him on the injured list, the responsible read is: don’t assume, wait for the update.
For now, the story is simple and a little deflating for Brewers fans who were hoping to watch their ace headline the Midsummer Classic. Misiorowski arm fatigue cost him Sunday’s start against Skenes and, one way or another, cost him a chance to pitch in Philadelphia. The break couldn’t have come at a better time.
