Pirates sign catcher Jose Herrera to a minor league deal

What happened

The Pittsburgh Pirates have agreed to terms with catcher Jose Herrera on a minor league deal, per the MLB.com transaction log, with Herrera assigned to Triple-A Indianapolis. The move does not place Herrera on Pittsburgh's 40-man roster.

Why it matters

Depth at catcher is one of those roster categories that looks fine until it doesn't, and September is precisely when organizations like to have options. Under general league mechanics, rosters expanded from 26 to 28 players on September 1, giving clubs a bit more flexibility to move pieces around — though a minor league deal keeps Herrera outside that picture unless Pittsburgh chooses to elevate him through a separate transaction.

Herrera brings something genuinely useful to Indianapolis even if his path to PNC Park remains uncertain: he is a switch-hitter with parts of four big league seasons behind him, and he has spent the better part of his career learning the craft of receiving at the highest level. That kind of experience doesn't always show up in a slash line, but it tends to matter in a late-September roster crunch when a club needs a warm body behind the plate who already knows how to handle a pitching staff.

The road to Pittsburgh was a winding one. Herrera reportedly signed an offseason minor league contract with Texas, spent the first half of the year with the Rangers' top affiliate in Round Rock, and was released around the All-Star Break. MLB Trade Rumors also noted a stop in the Mexican League before this opportunity with the Pirates materialized. It is the sort of itinerary that would look alarming on a travel expense report and perfectly routine on a minor league transaction wire — the professional baseball equivalent of a connecting flight through an airport nobody chooses on purpose.

What makes the signing notable beyond its modest footprint is the organizational context. Herrera's entire professional career prior to this season was spent in the Arizona Diamondbacks system, from the time he signed in 2014 through the end of last season. Pittsburgh represents his first affiliation outside Arizona, which means he arrives without the institutional familiarity that usually smooths a catcher's transition into a new pitching staff. Triple-A Indianapolis is where that acclimation begins.

The numbers

Herrera has not appeared in the majors this season. His time in Round Rock produced a .229/.344/.321 line with two home runs across 40 games, per MLB Trade Rumors — a profile that suggests more patience at the plate than power, which tracks closely with what his career history shows.

Over parts of four big league seasons, all with the Diamondbacks, Herrera batted .200/.280/.259 across 562 plate appearances. He spent a couple of those seasons backing up Gabriel Moreno in Arizona, which is to say he was operating behind one of the better young catchers in the National League and receiving the playing time that role typically affords — which is to say, not much. MLB Trade Rumors noted he has been exactly average at throwing out baserunners, a figure that in the context of a backup catcher's audition is neither a credential nor a liability. It is simply the baseline, and for organizational depth purposes, the baseline is often enough.

The .344 on-base percentage from his Round Rock stint is worth a brief pause. It sits notably higher than his career walk rate suggests, and it represents the kind of plate discipline that can make a light-hitting catcher useful in a lineup that needs an out avoided more than a run driven in. Whether that number reflects a genuine adjustment or a sample-size artifact across 40 games is one of the questions Indianapolis will help answer.

Where the club stands

Pittsburgh enters this stretch at 70-72 (.493), sitting fourth in the NL Central, 18 games back in the division. Their Wild Card position ranks seventh, 4.5 games relative to the cut line — which is the kind of number that technically keeps a team's postseason arithmetic alive while also suggesting the arithmetic is doing most of the heavy lifting at this point in the calendar.

The Pirates have won their last two games, a modest streak that at least points in a useful direction. The schedule ahead offers some opportunity: Thursday brings the San Francisco Giants to PNC Park, with Lake Bachar projected against Blade Tidwell. The Los Angeles Angels follow for back-to-back home games Friday and Saturday, with Jared Jones lined up against Ryan Johnson on Friday and Braxton Ashcraft facing Yusei Kikuchi on Saturday.

Home games against the Giants and Angels in early September are the kind of schedule segment a team at 70-72 circles on the calendar and tries not to overthink. The Pirates have the pitching matchups set; what happens from there is the part the transaction wire cannot tell you.

What we don't know yet

A minor league deal, by its nature, leaves a great deal unresolved. It is not known whether Herrera's contract includes a spring-training invitation, an opt-out clause, or any specific threshold that might trigger a 40-man addition. Those details were not reported by MLB Trade Rumors or reflected in the transaction log.

It is also not known what Pittsburgh's current catching situation at the major league level looks like in terms of depth or availability — the Herrera signing was reported as an organizational depth move, and MLB Trade Rumors does not connect it to any specific roster vacancy or health concern. The desk does not speculate about what prompted the addition beyond what the reporting states.

What to watch

The practical question is whether Herrera's assignment to Indianapolis is purely organizational insurance or whether Pittsburgh has a more immediate use in mind. The expanded September roster does create room for a veteran catcher to move up if circumstances warrant — but nothing in the reporting suggests that elevation is imminent or planned.

Watch the Indianapolis roster activity over the coming days. If Herrera gets regular starts behind the plate at Triple-A, that is the kind of quiet audition that occasionally ends with a September call-up. If he settles into a backup role there, the move reads more as organizational housekeeping — the minor league deal that keeps the depth chart honest and gives a well-traveled catcher a place to land after a summer that included Round Rock, a release, the Mexican League, and now Pittsburgh's Triple-A affiliate.

Either way, Herrera arrives in the Pirates system with more professional mileage than most Triple-A additions, a switch-hitting profile, and 562 big league plate appearances on his résumé. For a team managing a long September at 70-72, that is a reasonable piece to have available in Indianapolis, even if the transaction wire barely slowed down to notice it going by.