According to the Kyodo news agency, the boxing career of Yudai Shigeoka (pictured, right) has come to an end. The former WBC 105-pound champion announced his retirement in order to spend more time helping his younger brother Ginjiro, a former IBF 105-pound champion whose career was ended by a life-altering brain injury suffered in a bout earlier this year. Ginjiro (pictured, left) is reported to be in a three-month long state of unconsciousness following a loss to current IBF champ Pedro Taduran.  Yudai's retirement came during an already-tragic time for the Japanese boxing community, which saw two of its boxers die last week from boxing injuries. 

Yudai was quoted as saying, "It's my duty as an older brother to brighten his [Ginjiro's] life from here on."