Louis Okoye made an appearance as a pinch-hitter during a Ni-gun game against Nippon Ham on April 24. The media learned on the same day that the rookie was out with right elbow pain the previous day. He is expected to get the elbow examined.
Source: Sports Hochi 4/25/2016
[UPDATE 4/26 @ 7:30am]
Trainers were told that Okoye started feeling pain in his right elbow on April 22. The rookie could head to a hospital today for tests.
Source: Sponichi 4/26/2016