Russian triple-jumper Pyatykh gets four-year ban: CAS

ZURICH (Reuters) - The Court of Arbitration for Sport (CAS) has imposed a four-year ban on Russian triple-jumper Anna Pyatykh for violating rules on prohibited substances, the tribunal said on Friday. The ban takes effect from Dec. 15, 2016, the date her provisional suspension began, it said in a statement. "The CAS acted as first instance decision-making authority for this matter, substituting for the Russian Athletics Federation, currently suspended by the IAAF," it added. (Reporting by Michael Shields)