Rio Olympics 2016: Caster Semenya wins 800m gold

 

South Africa's Caster Semenya finished more than a second in front of silver medallist Francine Niyonsaba

South Africa's Caster Semenya won Olympic gold in the 800m but Great Britain's Lynsey Sharp missed out on a medal as she finished sixth.

Semenya set a new national record as she won in one minute 55.28 seconds to finish well clear of silver medallist Francine Niyonsaba of Burundi.
Kenya's Margaret Nyairera Wambui took the bronze medal, while Scot Sharp set a new personal best of 1:57:69.
Semenya, 25, has now won two Olympic medals after a silver at London 2012