Katsuya Kakunaka hurt his right side when he grounded out to third in the first inning of tonight’s game against the Orix Buffaloes. He was removed from the game in the bottom-half of the inning. He was treated, but not taken to the hospital. He will be taken off the active roster tomorrow (April 13).
[UPDATE 4/15 @ 12:11am]
Kakunaka was examined at a hospital in Tokyo on April 14 and diagnosed with an injury to his right internal oblique muscle. He will require four to six weeks for a full recovery. He will report to Ni-gun on April 15.
[UPDATE 4/25 @ 6:53pm]
Kakunaka started his rehab at Lotte Urawa Stadium today. He had been resting at home since his injury.
Source: Nikkan Sports 4/25/2017
[UPDATE 4/27 @ 4:07pm]
Kakunaka started taking batting practice against a pitching machine today. He hit about 100 pitches. He swung at full strength the last few pitches. He is planning to push his hitting workouts a little harder if he is feeling okay tomorrow.
Source: Sponichi 4/27/2017
[UPDATE 5/16 @ 5:45pm]
Kakunaka might be able to return to the active roster on May 19. He played in his first rehab game today and is expected to play in at least two to three rehab games in all.
[UPDATE 5/17 @ 12:39am]
Kakunaka started at designated hitter and batted third against Ni-gun Rakuten on May 16. He recorded two strikeouts and a walk in three trips to the plate.
Source: Sports Hochi 5/16/2017