Athlete: 'Russian doping denied me that winning moment'

British javelin thrower Goldie Sayers says she believes that there is enough evidence to suggest that doping by Russian athletes is "systemic".

Sayers came fourth at the 2008 Beijing Olympics after Russia's Mariya Abakumova won the silver medal.

Abakumova was named as one of 14 Russian athletes to have tested positive after urine samples from Beijing were retested.