The San Francisco Giants placed right fielder Mike Yastrzemski on the 10-day injured list Monday due to a left hamstring strain after leaving Sunday's game in the fifth inning.
Shortstop Isan Diaz was recalled from Triple-A Sacramento in a corresponding move.
Yastrzemski, 32, is batting .233 with 11 home runs and 32 RBIs in 77 games this season, his fifth with the Giants. He is a career .241 hitter.
Diaz, 27, last played for the big-league club in late June. He is 0-for-8 across two games with San Francisco in 2023 but has hit .258 with seven homers and 20 RBIs in 26 games with Sacramento and Class-A San Jose.