Two-time Olympic gold medallist Daley Thompson has described Paula Radcliffe as "one of the greatest athletes we (Great Britain) has ever produced".
The world record marathon holder had to withdraw from the London 2012 Games with a foot injury on Sunday.
Paula Radcliffe if u do retire its as one of the greatest athletes we have ever produced. The only thing u lacked in you armory was luck
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Find out what to expect from the weather if you are running in the big race in London or watching from the sidelines.
It will be a soggy start to the weekend and temperatures will drop making it feel colder than in recent days.