Diamondbacks move Ketel Marte from restricted list to 10-day injured list with left knee inflammation

The Arizona Diamondbacks have transferred Ketel Marte from the restricted list to the 10-day injured list, a move the club says is tied to a left knee problem that has been impacting his availability. In a report relayed by The Arizona Republic, Diamondbacks general manager Mike Hazen said Marte is expected to return to playing once he is fully healthy.

Marte’s situation has taken an unusual path because he entered the restricted list before the team moved him to the standard injured list timetable. That distinction matters because the injured list, unlike the restricted list, formalizes a minimum absence window and typically becomes the clearest indicator of when a player can begin a process toward activation. With Marte now on the 10-day injured list, Arizona gains a more defined roster timeline around how it will cover the second-base and infield workload while he is sidelined.

Arizona Sports 98.7 FM’s John Gamabdoro reported that Marte is dealing with inflammation involving his upper hamstring and the medial joint of his left knee. While the description is specific to the anatomy of the problem, the broader point for a position player is the same. Knee inflammation can complicate the repeated forces required for batting stance, baserunning acceleration, and the lateral movements demanded by everyday infield defense.

Hazen’s comments, as summarized by Piecoro, also set the expectation that this is not meant to be a long-term removal from the lineup. The general manager’s stated plan was to have Marte resume playing when his condition improves enough for baseball activities without aggravating the area that is currently inflamed. For the Diamondbacks, that kind of projected return is especially important because Marte is a central piece in the team’s daily offensive and defensive plan at a premium spot on the diamond.

For opponents, a Marte absence changes how Arizona can be lined up in the near term, particularly because his role touches both lineup stability and infield alignment. Even when the team’s next-available option at second base is capable of handling the position, the ripple effect tends to show up in sequencing, where managers try to maintain protection for hitters around the lineup and adjust the batting order to minimize drop-off in run creation.

The Diamondbacks’ immediate task is roster management during the injured list window. The team will need to establish a consistent plan for second base and also decide whether to shift other infielders to preserve defensive comfort while Marte’s health is monitored. From Marte’s side, the operational question is whether the inflammation described in the report responds quickly enough to allow the organization to consider activation when eligible.

What to watch next is how Arizona handles the 10-day injured list window and whether the club’s internal updates align with the stated expectation that Marte can return after he is healthy. If the team takes the full window or extends caution, the Diamondbacks could be forced to settle longer into lineup and defensive adjustments. If his condition improves on schedule, the next key development will be the team’s readiness to reactivate him and the corresponding decision of how to recalibrate the regular infield rotation and batting order.