James Cracknell has said that Prince Harry's visit to Headway a charity which helps those with brain injuries, will help raise the profile of the charity and the cause.
He said: "one of the things about brain injury is the hidden illness. If you're walking, talking, people think you're OK.
"With the profile a royal visit brings so many more people will have heard of Headway."
Cracknell won gold at the 2000 Olympics in Sydney and the 2004 Olympics in Athens. James suffered a brain injury in a near fatal accident after being struck from behind by a truck while cycling through Arizona in 2010.
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