Tomoya Mori left a game against WBC Cuba on March 5 early because he took a pitch off his left elbow during his at bat in the fourth inning. He left the field for treatment and did not return. He told reporters after the game that he was okay.
Mori was examined at a hospital in Osaka today and a fracture was discovered in his left olecranon. He is scheduled to return to Tokyo for additional tests with the team doctor.
[UPDATE 3/29 @ 11:29pm]
Surgery was a possibility, but Mori and the Lions opted for non-surgical treatment. He is slated to begin a rehab program in April. He will most likely require more than two months for a full recovery.
Source: Daily Sports 3/29/2017