Sasaki is on the 7-day injured list with High-A Bowling Green due an undisclosed injury.
The speedy outfielder has not played since May 12. Sasaki, who turns 23 in July, hit .290 with a .376 OBP, two home runs and nine steals in 25 games before landing on the shelf. He doesn't project to hit for much game power at all, but his strong hit tool and plus-plus speed could allow for him to make it as a low-end everyday center fielder.