Akira Nakamura hurt his right hamstring while running the bases in the sixth inning of a game against the Rakuten Eagles on April 17. He was examined at a hospital in Fukuoka today and diagnosed with a mild injury to his biceps femoris that will require two to three weeks for a full recovery.
[UPDATE 4/18 @ 9:52pm]
Nakamura was taken off the active roster today. He told reporters his goal was to make a return as soon as possible, perhaps even after ten days.