~RS~q~RS~v=~RS~z~RS~27~RS~)
Olympics BMX: Crash causes seven-rider pile up
Cannot play media. Sorry, this media is not available in your territory.
A massive pile-up in the first run of heat three of the men's BMX quarter-final results in an easy victory for New Zealand's Marc Willers.
A crash on the first banked turn brought down all the riders apart from Willers.
Manuel De Vecchi of Italy eventually rolled home in second place.
Watch a full replay of the men's BMX quarter-finals on the BBC Sport interactive video player.
Available to UK users only.
