South Korea's Olympic badminton gold medallist Lee Yong-dae has been hit with a one-year ban for missing doping tests.
The 25-year-old won mixed doubles gold at the 2008 Games in Beijing and a bronze medal in the men's doubles in London four years later.
Another Korean player, Kim Ki-jung, was also banned for one year.
The ban is effective until January 2015, meaning the players would miss the Asian Games in Incheon later this year.
