The International Gymnastics Federation (FIG) ruled today that the DPRK would ineligible to participate in world championships for gymnastics, effectively eliminating them from participating in the 2012 London Olympics. The ban is due to conflicting age reports for Hong Su Jong, who reported her birth year as being 1989, while in previous championships she had used 1986 and 1985 to bypass age restrictions. North Korea has one last shot to appeal the ruling, which is an appeal to the Court of Arbitration for Sport.
Source: FIG and CBC Sports
