4 August 2012 Last updated at 13:02 GMT

Olympics rowing: Purchase & Hunter final restarted

Zac Purchase's seat breaks underneath him

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Drama unfolds at the start of the men's lightweight double sculls final.

Zac Purchase's seat breaks underneath him and the British boat comes to a complete stop, before race is restarted and the British duo are pipped at the line by Denmark's Rasmus Quist and Mads Rasmussen.

Watch the rowing session here.

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