Kengo Takeda hurt his right hand when he took a pitch off his right hand while attempting a bunt. The incident took place in the second inning during a game against the Rakuten Eagles at Kyocera Dome on October 7. He was taken to a hospital in Osaka for tests (CT scan, x-rays) and diagnosed with a fracture in the distal phalanx of his middle finger. He will have to keep the finger immobile for four weeks.
[UPDATE 10/15 @ 10:55pm]
Takeda started taking batting practice on October 14 for the first time since his injury. He swung the bat at about fifty soft-tosses with just his left hand.
Source: Sponichi 10/15/2017