The move is retroactive to Thursday.
Yastrzemski left Wednesday’s game against San Diego with left hamstring tightness but had been expected to return within a couple of days after an MRI showed minor inflammation.
Yastrzemski had been one of the Giants’ key offensive contributors during a recent 10-game winning streak. Over his last eight games he batted .313 with 4 homers, 11 RBI, 9 runs, 3 walks and a double. He hit two home runs Monday night, splashing the winner into McCovey Cove in the 10th.
Infielder Isan Díaz was recalled from Triple-A Sacramento to take his roster spot.
Giants place Mike Yastrzemski on injured list