Diamondbacks Cut Pitcher Yilber Diaz From Big-League Camp

The 25-year-old right-hander will report to minor-league camp after struggling with control issues in spring training.

Published on Mar. 5, 2026

The Arizona Diamondbacks have optioned pitcher Yilber Diaz to their minor-league camp, ending his bid to make the big-league roster. Diaz, a 25-year-old right-hander, was touched up for four runs on three hits and two walks over just 1.2 innings of work this spring. He spent last season at Triple-A Reno, where he shifted to a relief role but continued to struggle with control, walking 73 batters in 57 innings.

Why it matters

Diaz was viewed as a potential bullpen option for the Diamondbacks, but his inability to throw strikes in spring training has resulted in him being sent down to the minors to work on his command. The Diamondbacks are looking to improve their pitching depth, so Diaz will need to show better control at Triple-A Reno if he wants to earn a call-up to the big-league club.

The details

Diaz was touched up for four runs on three hits and two walks over just 1.2 innings of work this spring with the Diamondbacks. Last season at Triple-A Reno, he shifted to a relief role but continued to struggle with control, walking 73 batters in 57 innings.

  • Diaz was optioned to minor-league camp on March 5, 2026.

The players

Yilber Diaz

A 25-year-old right-handed pitcher in the Arizona Diamondbacks organization.

Arizona Diamondbacks

The Major League Baseball team based in Phoenix, Arizona.

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What’s next

Diaz will report to minor-league camp and look to improve his control in order to earn a call-up to the Diamondbacks' bullpen later in the season.

The takeaway

Diaz's struggles with control have resulted in him being sent down to the minors, highlighting the importance of command for pitchers looking to make a big-league roster. He'll need to show better strike-throwing ability at Triple-A in order to get another shot with the Diamondbacks.