Triple-A Sacramento placed Diaz (hamstring) on its 7-day injured list Friday.
Diaz will be sidelined to begin the minor-league season due to the hamstring injury he picked up in a March 13 Cactus League game. The 26-year-old infielder possesses a spot on the Giants' 40-man roster and could be an option for the big club at some point later in the 2023 campaign.