Justin Martinez returns to D-backs bullpen after second Tommy John surgery

Justin Martinez has returned to the Arizona Diamondbacks bullpen after recovering from his second Tommy John surgery, MLB.com reported. The right-hander's return closes a gap of 435 days since his last major-league appearance — a number that carries its own quiet weight.

What happened

MLB.com reported that Martinez is back in the Diamondbacks bullpen after completing his recovery from a second Tommy John surgery. The procedure, which reconstructs the ulnar collateral ligament in the elbow, is among the most demanding rehabilitation journeys in professional baseball under ordinary circumstances. A second such surgery compounds that timeline considerably, and the 435 days between Martinez's last appearance and his return reflects exactly how demanding that road was.

The Diamondbacks announced the move as the club works through the final weeks of the regular season with a playoff spot still in play.

Why it matters

Late August is when bullpen arithmetic gets serious. Teams are managing workloads, protecting arms for a potential October, and trying to hold together a relief corps that has been taxed across five months of baseball. The 26-man active roster limit holds through August 31, after which clubs can expand to 28 players — a modest but meaningful cushion that is still nearly two weeks away. Until then, every available arm on the roster counts.

For Arizona, which sits at 76-68 (.528) and second in the NL West, the return of a healthy pitcher to the bullpen is not a footnote. The Diamondbacks are 10.5 games back in the division, which means the wild card is the more realistic path, and wild card races tend to be decided in exactly the kind of tight, late-inning situations where bullpen depth becomes the deciding variable. A fresh arm — particularly one the organization knows and presumably trusts — arriving at this point in the calendar is the kind of addition that does not show up in the standings column but can shape how a manager deploys the rest of his relief corps.

There is also the matter of what Martinez's return represents beyond roster mechanics. A second Tommy John surgery is not a minor detour. It is a significant medical event, a prolonged absence, and a sustained commitment to rehabilitation that stretches well over a year. The 435-day figure is not just a number for the record books; it is a measure of how long Martinez and the organization waited for this moment. That context does not change how the club uses him, but it does frame why his availability matters in a way that a standard roster move does not.

The numbers

Arizona's record stands at 76-68 (.528), placing the club second in the NL West, 10.5 games behind the division leader. The Diamondbacks have won their last two games heading into Wednesday's road contest at Fenway Park.

Where the club stands

The Diamondbacks carry a two-game winning streak into Wednesday's matchup at Boston, where Brandon Pfaadt is the probable starter against Payton Tolle. From there, Arizona returns home to Chase Field for a weekend series against the Cincinnati Reds: Eduardo Rodriguez is lined up to face Nick Lodolo on Friday, with Michael Soroka opposing Rhett Lowder on Saturday.

At 76-68, the club is in a position where each series matters. The schedule over the next several days offers a reasonable opportunity to extend the current streak, but the margin for error in a wild card chase is thin enough that the composition of the bullpen — and who is available on which day — becomes a genuine tactical question. Martinez's presence adds a name to that conversation.

What we don't know yet

Is Martinez available immediately?

MLB.com's report does not specify the terms of his initial usage. Whether the Diamondbacks plan to ease him back into competition gradually or deploy him in standard relief situations from the outset has not been detailed. His workload limits, if any, and his role within the bullpen's hierarchy are questions that will be answered through his first appearances rather than through any disclosed plan. The club has not outlined a specific timeline or usage framework beyond the return itself.

It is also worth noting that the general mechanics of a return from a rehab assignment — pitchers may use up to 30 days on a rehab assignment before being activated — mean the organization has had some window to evaluate his readiness in a lower-stakes environment. Whether that process shaped their confidence in his availability for immediate use is not addressed in the report.

What to watch

The most informative signal in the coming days will be how quickly Martinez appears in a game and what situations the Diamondbacks choose for his first outings. A manager who uses a returning pitcher in a low-leverage spot in his first few appearances is telling you something different than one who deploys him in a tie game in the seventh. Neither approach is a verdict on the pitcher's ability — it is simply roster management — but it will offer a read on how the organization views his readiness.

Beyond the first appearance, watch whether he pitches on consecutive days. That is often the clearest indicator that a club believes a pitcher's arm is responding well and that they are comfortable treating him as a fully integrated bullpen option rather than a carefully rationed resource. With September expansion still ahead and a playoff race that has not resolved itself, the Diamondbacks have both the incentive and the upcoming schedule to find out quickly what they have in Martinez's return.