London 2012: Mark Foster closes door on possible sixth Olympic Games
Five-time Olympian Mark Foster tells BBC Sport's Nick Hope he will not represent Great Britain at a sixth Olympic Games, despite admitting he would give up his five previous experiences "for one shot to be at London".
The 50m sprint-freestyle specialist and six-time world champion has never won an Olympic medal, but believes it is time to "leave it alone and let the younger ones have a chance".
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