Martin's Blister Accelerates White Sox Pitching Shuffle; Urquidy Inherit Innings in Pennant Push

The White Sox placed right-hander Davis Martin on the 15-day injured list Friday due to a blister on his right middle finger, a timing setback that removes one of Chicago's more stable rotation arms during a late-season playoff hunt. Martin was ejected in the third inning of Thursday's game against Cincinnati after hitting rookie Sal Stewart, and the blister emerged during that abbreviated appearance—a physical toll that has now cost the team a starter with a 4.32 ERA and 9-6 record over his full season.

The narrative of Martin's 2026 campaign is one of sharp decline masked by early-season competence. Through his first 11 starts, Martin posted a 2.00 ERA—the kind of floor-setting performance that led the White Sox to trust him in the rotation. Since the beginning of June, however, his command has fragmented. Over 13 starts spanning mid-June through Thursday, his ERA ballooned to 7.06, a near-four-run monthly collapse that exposed either mechanical drift or opponent adjustments he hasn't solved. The blister, then, isn't purely a freak injury; it arrives as Martin was already losing effectiveness, and now Chicago is forced to patch the roster without him for at least two weeks.

Entering the void is José Urquidy, a 31-year-old journeyman acquired from Pittsburgh before the trade deadline. Urquidy has carved out a minor-league pedigree this season—6-4 with a 3.48 ERA across 20 Triple-A starts between Indianapolis and Charlotte—but his big-league résumé is unremarkable. In parts of seven seasons with Houston, Detroit, and Pittsburgh, he's gone 21-17 with a 4.07 ERA in 86 appearances. His relief work for the Pirates this season tells an uglier story: five appearances, 6⅓ innings, 8.53 ERA. The White Sox are banking on Urquidy as a rotation piece, not a reliever, and his limited time in Charlotte (12 innings, 2.25 ERA) doesn't offer robust evidence of durability at this level.

From a betting lens, Martin's removal from the rotation reduces White Sox game total predictability over the next two weeks. Martin's mediocre-but-steady workload—he was allowing 4.3 runs per nine innings, roughly league average—meant Chicago's run expectation was anchored to a known floor. Urquidy introduces volatility: his big-league track record suggests regression-prone performance, and his small sample in Triple-A hasn't proven he can sustain low ERAs against major-league competition. When a rotation gets a mid-season depth call like this, sportsbooks initially adjust via moneyline repricing, but team totals often lag. Chicago's run-per-game output will likely depend more heavily on its offense for the next 2-3 Urquidy starts, and if the market hasn't fully priced in his elevated variance—his 4.07 career ERA, his 8.53 relief ERA for Pittsburgh—then unders on White Sox team totals in his starts represent an under-the-radar edge.

Martin's 15-day timeline means he could return around August 29, but the blister recurrence risk in a pitcher's middle finger is real; velocity and grip security are non-negotiable in any rotation role. For now, Chicago's ceiling-floor on team production becomes wider and more unpredictable, a shift that favors disciplined under-players over the next fortnight.