(FILES) This file photo taken on December 15, 2015 at the French national anti-doping laboratory in Chatenay-Malabry, outside Paris shows urine samples in the same bottles used to analyse Russian athletes urine at the 2014 Sochi Winter Olympics. Salt and coffee were used to conceal positive drug tests by Russian athletes, doping investigator Richard McLaren revealed on December 9, 2016. Former Moscow doping laboratory director Grigory Rodchenkov swapped positive urine samples with previously collected clean samples, adding salt and coffee to replicate the consistency of the original samples. / AFP PHOTO / FRANCK FIFE