The Hanshin Tigers announced that Taichi Okazaki had surgery to treat a hamate bone fracture in his left hand/wrist at a hospital in Osaka. He was taken off the active roster on July 14.
[UPDATE 7/16 @ 2:47pm]
Okazaki may have suffered the fracture during an at bat on July 12 against Yakult at Nagano. He was available to play the following day (his left hand taped up), but did not.
Source: Sponichi 7/16/2016