IMAGE: Ksenyia Ryzhova of Russia, second right, looks on with teammates after competing in the Women's 4x100 metres relay. Photograph: Michael Steele/Getty Images.
Russian athletes will file a class action suit against a ban imposed by the International Association of Athletics Federations to the Court of Arbitration for Sport next week, TASS news agency cited Russian Athletics Federation General Secretary Mikhail Butov as saying on Thursday.
