The Arizona Diamondbacks are staring at an offseason question that goes far beyond one roster move: what comes next with Ketel Marte?
Arizona fell one game short of the playoffs again, and that’s left the club sorting through familiar disappointment while also confronting a bigger issue around one of its defining players. Marte has spent years as one of the franchise’s central figures alongside Corbin Carroll, building a résumé that includes three All-Star selections, two Silver Slugger Awards, the 2023 NLCS MVP honor, and a key role in the Diamondbacks’ World Series run. The organization backed that status with a long-term extension through 2030 and a player option for 2031.
But the conversation around Marte has shifted. His missed time and his controversial absence during Arizona’s series in Boston have raised questions among fans about his connection to the team and his standing in the clubhouse. Those concerns have only sharpened the debate because Marte’s value isn’t just about reputation; even after a down 2026 season, he still profiles as one of the most productive offensive second basemen in baseball.
There’s also a layer of control Arizona no longer has. Marte reached 10 years of MLB service time and five straight seasons with the Diamondbacks, giving him full 10-and-5 rights in 2026. That means he can block any trade, so the Diamondbacks can take calls, but they cannot move him unless he approves the destination.
“Diamondbacks 2B Ketel Marte becomes a 10-and-5 player today meaning he can no longer be traded without his permission.”
That reality makes the return package harder to project. A star on a relatively team-friendly deal would normally draw plenty of interest, but Marte is now 32, is coming off a less productive season, and carries the added uncertainty that has followed him this year.
That leaves Arizona weighing more than just market value. The real question is whether the next contender they build is better with Marte in it.
If the Diamondbacks do trade him, it would close the book on one of the most accomplished careers in franchise history in a way few saw coming. If they keep him, they have to believe he can return to the form that made him indispensable and that the issues surrounding him are behind the club.
Either way, this decision is about more than baseball. It is about the shape of the Diamondbacks’ next era.
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