The Arizona Diamondbacks placed second baseman Ketel Marte on the restricted list after he failed to appear for a game on Monday [1].

Marte is a central figure in the Diamondbacks' lineup, and his sudden absence during a road series creates immediate uncertainty for the team's infield depth and offensive production.

The situation unfolded on Aug. 17 during a scheduled game at Fenway Park in Boston [1]. Marte did not report for the contest, prompting the organization to move him to the restricted list. Following the no-show, Marte traveled to Phoenix, Arizona, to undergo medical evaluation at the team's facilities [2].

Reports indicate that Marte underwent an MRI on his knee to diagnose an unspecified issue [3]. The team has not released specific details regarding the nature of the injury or the severity of the condition. The move to the restricted list is a procedural step often used when a player is unavailable for reasons not covered by the injured list.

Manager Torey Lovullo said he is hopeful that Marte can play again in 2026 [4]. The timeline for a potential return remains unclear as the team awaits the final results of the imaging tests.

The Diamondbacks are currently navigating a critical stretch of their season. The loss of a primary starter, even temporarily, forces the coaching staff to shuffle the batting order and rely on bench players to fill the gap at second base. The team's medical staff in Phoenix will now determine if the knee issue requires long-term rehabilitation or if it is a short-term setback [2].

The Arizona Diamondbacks placed second baseman Ketel Marte on the restricted list

The use of the restricted list rather than the injured list suggests a complex administrative or medical situation. While the MRI provides a clinical path forward, the timing of this injury during a road trip puts pressure on Arizona's roster flexibility during the 2026 campaign.