MOSCOW — Former world and Olympic champions Svetlana Krivelyova and Olga Kuzenkova have been banned for two years each for failing drugs tests after their samples were re-examined, the Russian athletics federation (VFLA) said Tuesday. The 42-year-old Kuzenkova, 2004 Olympic champion in the women's hammer, tested positive at the 2005 world championships in Helsinki, where she also finished first. Krivelyova, 43, who won the women's shot put gold at the 1992 Barcelona Olympics and the 2003 world championships in Paris, failed a test at the 2004 Athens Games. Krivelyova had already been stripped of the 2004 bronze medal. — Reuters