Diamondbacks Option RHP Drey Jameson to Triple-A Reno

The Arizona Diamondbacks just made some spring roster moves, optioning Drey Jameson to minor league camp. They also sent right-hander John Curtiss and infielder Luken Baker down to the same level.

There are only 11 days left until Opening Day. With these moves, Arizona trimmed its big-league camp to 37 players as they try to finalize the roster for the regular season.

This whole process mixes player history, recent spring performances, and the team’s evolving approach to building depth in both the rotation and bullpen. There’s a lot to juggle, honestly.

Roster moves tighten the camp as Opening Day approaches

The D-backs are inching closer to their 2026 schedule. They’re still searching for that sweet spot between player development and fielding a competitive roster.

With Opening Day looming, Arizona’s sorting out which veterans and younger guys will actually contribute on the mound and in the infield. The decisions reflect ongoing evaluations of health, upside, and how these pieces fit around a core group that’s hoping to bounce back from some rough, injury-filled seasons.

What the latest moves mean for each player

• Drey Jameson — He’s a 28-year-old righty who’s spent three seasons with Arizona, putting up a 2.65 ERA in 68 big-league innings. In 2023, he pitched a career-high 40.2 innings, but then elbow trouble knocked him out for all of 2024. He only appeared in three MLB games last season while rehabbing. Sending him to minor league camp looks like a cautious plan to ease him back toward a rotation spot.
• John Curtiss — Curtiss is a veteran with eight MLB seasons and a career ERA of 4.03. Last year, he threw 36.2 innings for Arizona, notching a 3.93 ERA and a save. Heading to minor league camp gives him a chance to tweak his mechanics and stay ready if the big club needs him soon.
• Luken Baker — Baker joined the team on a minor-league deal in January. He’s played nine years in the minors and majors, including 73 MLB games with the Cardinals. This spring, he hit .273 with a .961 OPS over 13 games. That’s not nothing—he could be a future option if things break right.

Arizona made a round of cuts last week too, optioning five players to the Reno Aces. It’s all part of shaping the Opening Day roster while keeping a steady pipeline of depth down on the farm.

How these decisions impact the Opening Day picture

Now, with just over a week until the season starts, 37 players remain in big-league camp. Arizona seems focused on balancing immediate needs with long-term development.

For a team trying to compete in a tough division, they’re carving out clear roles for pitchers who might end up in the bullpen or rotation. At the same time, they’re protecting rehab timelines for guys like Jameson. It’s a lot to manage, but that’s spring in baseball.

Battles and timelines to watch in the final stretch of spring

• Rotation competition — Jameson’s working his way back after elbow trouble. The D-backs will keep a close eye on his health and how sharp he looks as spring rolls on. They’re also watching a few younger arms who might land starting or long-relief roles.
• Bullpen depth — Late spring games will really test the bullpen mix. Veterans and younger pitchers need to show who’s ready for multi-inning jobs and tough, high-pressure spots.
• Infield versatility — Baker’s in the system now, and he’s not the only one. The team’s figuring out how the bench will look and how to use utility guys over the long regular season slog.

The Diamondbacks keep trimming their big-league camp, but they’re always thinking about the long haul. They’ve got to balance health—like what’s up with Drey Jameson—and how guys like Luken Baker fit in. It’s a snapshot of a team trying to stay competitive right now, but also not lose sight of what’s coming next as Opening Day creeps closer.

 
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