The Los Angeles Dodgers are playing with fire. Just when it looked like the front office had built an insurmountable regular season juggernaut, the fragile nature of modern pitching caught up to them again. Placing 37-year-old reliever Blake Treinen on the 15-day injured list with right elbow inflammation isn't just a routine roster transaction. It is a blinking red warning light for a team that harbors World Series or bust expectations.
If you are a Dodgers fan, the phrase "elbow inflammation" should send a chill down your spine. For a high-leverage reliever with Treinen's mileage and extensive injury history, that medical designation is rarely a simple two-week blip. It completely changes how manager Dave Roberts has to manage his late-inning options. Worse, it exposes the lack of true high-leverage depth in a relief corps that has already been tested to its limits.
The official move happened right before Saturday's game against the Baltimore Orioles. To fill the open spot, the Dodgers recalled right-hander Chayce McDermott from Triple-A Oklahoma City. But let's be totally real here. A young arm fresh out of the minor leagues cannot replace what Treinen brings to the table when he is right. The timing of this injury forces the front office to re-evaluate their entire approach to the upcoming trade deadline.
Why the Elbow Matters for a High-Octane Reliver
Treinen has built his entire career on an incredibly violent, high-effort pitching motion that creates devastating movement. His signature turbo-sinker and sharp slider require immense torque. When you throw those types of pitches at 37 years old, the margin for physical error is almost nonexistent.
Look at his performance before the injury. On paper, his season line looks completely respectable. He has got a 4-1 record with a 3.52 ERA over 29 appearances. He is striking out hitters at a clip of 9.78 per nine innings. He even threw a scoreless ninth inning right before landing on the list, setting up a dramatic walk-off win against Baltimore.
But look closer at the underlying data. Before that final appearance, Treinen had a brutal 5.06 ERA over his previous handful of innings. His command was starting to waver. His walks were creeping up to 3.91 per nine innings. That kind of sudden inconsistency is often the first sign that a pitcher is fighting through physical discomfort. When the command goes, the elbow is frequently the culprit.
This isn't Treinen's first rodeo with arm trouble. He missed almost the entire 2022 season after undergoing shoulder surgery. Last year, he sat out for more than three months with right forearm tightness, finishing a rough 2025 campaign with a bloated 5.40 ERA. The Dodgers bet heavily on his recovery, re-signing him to a two-year, $22 million deal. Right now, that investment looks incredibly risky.
Forearm tightness and elbow inflammation are dangerously connected. The muscles in the forearm protect the ulnar collateral ligament. When those muscles fatigue or fail to fire correctly, the stress shifts directly to the elbow joint. The Dodgers are calling it inflammation for now, but everyone knows an MRI could easily reveal something far more severe.
The Domina Effect on Dave Roberts Late Inning Strategy
Losing Treinen creates a massive structural problem for the bridge to the ninth inning. Roberts loves comfort and predictability in his bullpen, and Treinen was one of the few guys he trusted implicitly when the game was on the line.
The bullpen was already compromised before this news broke. The team is missing superstar closer Edwin Diaz, who is recovering from major elbow surgery. Other critical high-leverage options like Brusdar Graterol and Evan Phillips have been navigating their own extended absences and rehab assignments. When you subtract Treinen from that equation, the remaining relievers are forced to slide into roles they aren't necessarily equipped to handle.
Suddenly, middle-relief options are forced into the seventh and eighth innings. Guys who should be coming in fresh to face the bottom of the order are now staring down elite heart-of-the-order hitters in tie games. That extra pressure causes a cascading failure across the entire staff.
We have seen this script play out in Los Angeles before. The starting rotation goes deep, hands a lead to a tired bullpen, and the game unravels in the span of three batters. If the front office expects the starting rotation to throw eight scoreless innings every night in October to compensate for a weak pen, they are delusional.
Who is Chayce McDermott and Can He Cope
Calling up Chayce McDermott is an intriguing move, but it highlights exactly how thin the internal options truly are. The Dodgers brought McDermott over in an April trade with the Baltimore Orioles in exchange for Axel Perez. He has undeniable raw talent, but he is far from a finished product.
McDermott relies on a classic power arsenal. His fastball can consistently hum in the mid-90s, and his breaking ball has the kind of sharp, late bite that generates empty swings. He made a brief one-inning cameo against the Los Angeles Angels back on May 17, throwing a scoreless frame before getting sent back down.
The big asterisk on McDermott has always been his control. Triple-A hitters have routinely punished him whenever he struggles to locate his secondary pitches. If you cannot throw strikes consistently in Triple-A, Major League hitters will absolutely tear you apart.
Expect Roberts to protect the young righty early on. You won't see McDermott entering a bases-loaded jam in the eighth inning against the Yankees or Orioles right away. He will get his feet wet in low-leverage situations, long relief, or games where the score is already out of hand. That leaves the current high-leverage workload on an overworked inner circle of relievers, pushing them closer to the exhaustion cliff.
The Deadine Reality Check
This injury completely blows up the narrative that the Dodgers can coast through the July trade deadline by focusing solely on an extra bench bat or a depth starter. A high-leverage right-handed reliever is no longer a luxury. It is a mandatory requirement.
The trade market for impact relief pitching is notoriously volatile. Prices skyrocket because every single contending team wants the exact same thing. Teams will demand top-tier prospects for rental relievers who might only throw 20 crucial innings for you down the stretch.
But the Dodgers don't have a choice. You cannot enter a postseason series counting on a 37-year-old coming off elbow issues and a handful of unproven rookies. The front office needs to start making phone calls immediately. Waiting until the final hours of the deadline will only drive the price up and leave fewer quality arms on the board.
Look Ahead
Keep a very close eye on the medical updates over the next week. If Treinen responds well to rest and begins a throwing program without pain, the Dodgers might dodge a bullet. If his shutdown period gets extended, or if the dreaded second opinion enters the conversation, expect Andrew Friedman to move aggressively on the trade market.
For now, the strategy is survival. The offense needs to score enough runs to widen the margin of error, and the starting pitchers must pitch deeper into games to shield a vulnerable bullpen. The regular season cushion is nice, but championships are won by the teams that can lock down the final nine outs when everything is on the line.
