Kotaro Kiyomiya hurt his right wrist while fouling a pitch off during his at bat in the ninth inning of an exhibition game against Yokohama at Sapporo Dome on March 3. He was pulled from the game as a precaution. Kiyomiya also hurt he same wrist last fall and had additional problems with it last month.
[UPDATE @ 10:37pm]
The Nippon Ham Fighters announced that Kiyomiya was examined at a hospital in Tokyo today and diagnosed with a fracture in his right hamate bone. A timeline for his recovery has not yet been released. Surgery could be an option.
The NPB also announced that Kiyomiya will not participate in the Japan vs Mexico exhibition games later this month. No one will be taking his spot on the roster.
[UPDATE 3/5 @ 2:36pm]
According to the latest reports, Kiyomiya will have (or may have already had) surgery on his wrist today.
[UPDATE 3/6 @ 10:11am]
Kiyomiya had surgery on his wrist at a hospital in Tokyo on March 5. There were no complications. He will begin a rehab program at the Ni-gun facilities in Kamagaya on March 12 and will most likely need about three weeks for a full recovery.