Nikkan Sports is reporting that thirty-nine-year-old Soichi Fujita will be retiring after the current season.
Fujita was in the Softbank organization last year before signing with the Gunma DIamond Pegasus Baseball Club (BC League) as a pitcher/coach this year. Although his numbers have not been altogether bad (28 G, 3-2, 28.1 IP, 128 BF, 443 NP, 33 H, 22 SO, 10 BB, 12 R, 8 ER, 2.54 ERA), he has struggled with injuries this year. That was apparently a concern for him and likely became a factor in his decision.
Source: Nikkan Sports 9/14/2012