World Anti-Doping Agency: Clearing Russian athletes causes 'dismay and frustration'

The World Anti-Doping Agency has described the decision to overturn the lifetime bans given to 28 Russian athletes as a cause of "dismay and frustration".

The Court of Arbitration for Sport ruled on Thursday there was "insufficient evidence" to uphold the suspensions issued by the International Olympic Committee following an investigation into state-sponsored doping at the 2014 Winter Olympics in Sochi.