Japhet Amador hurt the back of his left hand during his at bat in the 6th inning against Nippon Ham at kobo Stadium on May 27. He was replaced by a pinch-hitter in the eighth and taken to a hospital in Sendai for tests.
Source: Sanspo 5/28/2016
[UPDATE 5/29 @ 10:23am]
The Eagles are expected to take Amador off the active roster today. Luis Okoye will most likely be called up.
Source: Daily Sports 5/29/2016
[UPDATE 5/29 @ 1:38pm]
Amador was examined at a hospital on May 28 and diagnosed with a bone contusion on the fourth metacarpal of his left hand. He will require about four weeks for a full recovery. He was taken off the active roster today.
Source: Sports Hochi 5/29/2016