Ikuhiro Kiyota took an HBP off his left hand during his at bat in the sixth inning against Rakuten on April 14. He remained in the game and later came around to score, but was replaced by a pinch-hitter for his at bat in the seventh inning.
Source: Sanspo 4/14/2016
[UPDATE 4/16 @ 12:10am]
Kiyota was examined at a hospital in Sendai and diagnosed with a bruise on the fifth metacarpal on his left hand.
Source: Sanspo 4/15/2016