Putin spokesman calls Sochi doping claims 'a turncoat's libel'

Dmitry Peskov attacked the credibility of a former Russian anti-doping official who told the New York Times that he switched tainted urine samples for clean ones during the Olympics.

Allegations that the Russian state organised and covered up doping at the Sochi Olympics are "a turncoat's libel", according to Russian president Vladimir Putin's spokesman.

Dmitry Peskov attacked the credibility of former Russian anti-doping official Grigory Rodchenkov, who told the New York Times that he switched tainted urine samples for clean ones during the Olympics.