8 August 2012 Last updated at 13:20

Olympics athletics: Saudi Arabian woman makes history

Saudi Arabia's Sarah Attar makes history in the 800m heats by becoming the first woman from her country to compete in athletics at the Olympic Games.

The 80,000 crowd cheered Attar as she finished 43 seconds behind heat winner Janeth Jepkosgei Busienei of Kenya.

Attar, who holds Saudi Arabian and American dual nationality, told the BBC that she competed "to make a difference" and hopes "it sparks something amazing".

Watch a full replay of the women's 800m heats on the BBC Sport Interactive player.

Available to UK users only.