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From near death to Paralympics

11 November 2012 Last updated at 12:38 GMT

Derek Derenalagi said he was about to be put in a body bag when a doctor who was operating on him in Camp Bastion found a pulse.

He lost his legs whilst out in Afghanistan in 2007.

Speaking on the Andrew Marr Show, the Paralympic athlete and soldier said he first threw a discus in 2010, and told everyone he would be doing it at London 2012.

"I just trained hard and I did it" he said, adding he wouldn't have been able to do it without the support of his friends and colleagues.

You can watch The Andrew Marr Show in full on BBC iPlayer.