Two Russian 's were banned after abnormalities with biological passports . Six , Sergey Kirdyapkin and Yuliya Zaripova , won gold at London 2012. International Association of Athletics Federation has appealed to CAS .
Six Russian 's were banned after abnormalities with biological passports . Two , Sergey Kirdyapkin and Yuliya Zaripova , won gold at London 2012. International Association of Athletics Federation has appealed to CAS .