Under The Knife 5/20/26

I Don't Believe These Titles Matter

BLAKE SNELL, SP LAD (inflamed elbow)

Blake Snell undergoing NanoNeedle surgery on Tuesday makes this feel much less like an isolated curiosity and much more like the beginning of a real shift in baseball medicine. Tarik Skubal was the proof of concept everyone noticed because he’s one of the best pitchers in the game and because Dr. Neal ElAttrache’s name carries enormous weight in baseball circles. Snell following immediately afterward matters even more. Once elite teams and elite surgeons start repeating a process this quickly, it usually means the internal confidence level is already much higher than the public conversation.

What’s fascinating is that the NanoNeedle almost makes traditional arthroscopy the backup plan rather than the starting point. The logic is straightforward. Go in with the nanoscope first because the portal is tiny, the disruption minimal, and the visualization surprisingly good. If the surgeon can fully address the problem with the smaller instrumentation, great. If not, they simply enlarge the portal and convert to standard arthroscopy. That’s why the risk profile here is so intriguing. There’s very little downside to looking minimally first. The procedure itself becomes both diagnostic and potentially definitive.

Yes, this is where things start sounding futuristic very quickly. Nanoscopic procedures theoretically reduce the need for full operating-room scale intervention in some cases. Sterility still matters enormously, obviously, but the equipment itself pushes toward a world where certain joint evaluations and cleanups become dramatically less invasive than anything athletes have experienced before. Baseball people still tend to talk about “elbow surgery” like it’s 2005. The technology has already moved.

Snell is actually a very useful patient for this evolution because he already provides a baseline comparison. Back in 2019, he underwent arthroscopic removal of loose bodies after his Cy Young season with Tampa Bay and returned in just over two months. He came back throwing well. The surgery worked. So this becomes less about whether loose body cleanup is effective and more about whether nanoscopy meaningfully compresses recovery further by reducing inflammation, swelling, and tissue disruption.

That’s the part baseball is watching now, even if teams won’t admit it publicly yet. If Skubal returns quickly and dominates - see below - and if Snell follows a similarly accelerated path, the NanoNeedle stops being “new technology” and starts becoming standard workflow. First look with the nanoscope. Escalate only if necessary. That’s how medical revolutions actually happen, not through dramatic announcements, but through surgeons quietly deciding there’s no reason to do the more invasive procedure first anymore.

TARIK SKUBAL, SP DET (inflamed elbow)

Usually, this would lead, so call it 1 and 1A and you know what? I’ll put them both above the paywall. Sometimes it’s more important to share the knowledge that paying for the work that led to the knowledge. For Tarik Skubal, his return is coming quicker than anyone expected. There were some that wondered if he’d pitch for the Tigers again this season, but now, I’m wondering if he’s going to pitch in May.

That’s right - after two mound sessions, Skubal, the Tigers, and his advisors are discussing whether a rehab assignment is necessary, meaning he could be back as soon as next week. He had almost no down time, so we can make some reasonable assumptions about where his workload is now.

This is where Gabbett’s Acute:Chronic Workload Ratio concept becomes useful again, even if baseball still treats it like some forbidden dark art because the original studies got over-applied and under-understood. The core principle remains sound. Sudden spikes are dangerous. Stable workload is protective. The body adapts to what it repeatedly experiences. It panics at chaos.

The standard model uses a 7-day “acute” workload against a rolling 28-day “chronic” baseline. For pitchers, most people simplify this into pitch counts, but that misses half the story. A 90-pitch outing is never really 90 pitches. There’s the bullpen beforehand, warmups between innings, recovery catch, side work, flat grounds, plyo drills, all the connective tissue between starts that never shows up on Baseball Reference. For Skubal, though, the important thing isn’t the exact number. It’s the continuity.

The NanoNeedle procedure performed by Dr. Neal ElAttrache appears to have done exactly what it was designed to do: remove the loose body without significantly interrupting his throwing progression. He wasn’t shut down in a cast. He resumed throwing within days. That matters enormously because his chronic workload base likely never collapsed.

Think about it this way. If a pitcher goes completely dark for six weeks, his 28-day baseline craters. When he ramps back up, even moderate throwing creates an acute spike. That’s where reinjury risk tends to live. Skubal avoided most of that. Detroit essentially kept the engine idling instead of shutting the car off.

Now layer in what happened before the injury. The Tigers already handled him conservatively through spring and the WBC, limiting him to a single appearance with a 55-pitch cap while maintaining his normal cadence. That wasn’t accidental, even if they didn’t know this specific situation was coming. The organization has spent three years building one of the most stable workload profiles in baseball around him. Since returning from flexor surgery in 2023, they’ve avoided volatility almost obsessively. That’s why this return feels less insane than it sounds.

The elbow may have needed cleaning up, but the arm never truly detrained. That’s a massive distinction. The acute workload stayed relatively close to the chronic baseline, which means the Tigers aren’t rebuilding Skubal from zero. They’re plugging him back into an already-running system.

The hard part now might actually be psychological. Skubal admitted this week that he feels good enough to “let it go,” while the Tigers are telling him to keep the governor on for now. That’s smart. The danger in accelerated recoveries isn’t usually healing tissue. It’s competitive adrenaline convincing someone they’re invincible five days before they actually are.

A reminder that there’s lots more below the paywall, and that I’ll be talking to the surgeon for both of these, Dr. Neal ElAttrache, on the next Injury Territory, so go subscribe to that as well.

No, no, one more before the paywall, because I’m feeling a rant coming …

GERRIT COLE, SP NYY (sprained elbow)

Gerrit Cole will finally make his 2026 debut on Friday, ending one of the longest and most carefully managed rehab buildups baseball has seen in years. Which is why the online discussion immediately turning toward some hypothetical “pitch ceiling” feels like the most 2026 baseball conversation imaginable. What exactly do people think the Yankees have been doing for the last several months?

Cole has been throwing real innings against real hitters under real stress. The elbow doesn’t magically distinguish between Triple-A workload and Yankee Stadium workload. Force is force. Stress is stress. Once he crossed the threshold where the repaired and internally braced ligament was tolerating mound intensity consistently, the adaptation process already started happening. That’s the point of the surgery and the rehab. You don’t protect the elbow forever. You progressively expose it to exactly the thing it was repaired to withstand.

This is where baseball sometimes disappears into fear disguised as science. No one is talking about letting Cole throw 150 pitches like it’s 1974. But the idea that after months of buildup the Yankees should still operate under some rigid artificial cap regardless of game context, mechanics, recovery markers, fatigue data, or actual observable reality just feels performative at this point. Pulling him at 90 pitches isn’t medicine. It’s a managerial choice wrapped in medical language.

The Yankees employ one of the largest sports science and performance staffs in baseball. They have force plate data, recovery metrics, elbow strength measurements, biomechanical tracking, between-inning feedback, and a future Hall of Fame pitcher who knows his body exceptionally well. Aaron Boone doesn’t need a laminated “do not exceed” sticker handed down from Mount Sinai.

The smarter approach is the obvious one. Watch the pitcher. Watch the stuff. Watch the mechanics. Watch the recovery. Make decisions in real time using the mountain of information modern teams already collect instead of pretending one arbitrary number suddenly separates “safe” from “dangerous.”