The Yomiuri Giants announced that Luis Cruz left for the United States for medical tests, most likely for a second opinion on his left ankle. He is not expected to be gone for very long.
Source: Sponichi 6/14/2016
[UPDATE 6/15 @ 10:59am]
Cruz could end up missing a larger portion of the season than originally estimated. Surgery has not been completely ruled out. For now, the plan is for him to consult with doctors in the United States for a few days and return to Japan for rehab.