The Arizona Diamondbacks' 40-man roster was last updated on November 2, 2026, according to the team's official transaction log. The roster reflects the current player pool ahead of the offseason.
A photo from the 2026 Mexico City Series shows Diamondbacks players lining up along the base path during the national anthem before a game against the San Diego Padres at Estadio Alfredo Harp Helu on April 26, 2026.
