First round draft pick Tomohiro Anraku was diagnosed with a right ankle sprain that will take four to six weeks for a full recovery. Anraku suffered the injury while practicing at kobo Stadium on March 17.
Source: Nikkan Sports 3/18/2015
Takahiro Arai woke up with pain and swelling in his right elbow on March 18. He did not participate in practices and returned to Hiroshima. He will be examined at a hospital in Hiroshima on March 19.
A full list of injured players can be found here. It is a little disorganized right now, but updated at least once a day.