© Andrew Fosker / Seconds Left Images 2010 - Serviceman Derek Derenalagi is helped by Prime Minister Gordon Brown (and Downing Street Policeman ) after taking a fall on the steps of number 10 Lawrence Dallaglio (R) & serviceman Derek Derenalagi meet Prime Minister Gordon Brown at 10 Downing Street, London to promote the Wasps charity St George's Day game at Twickenham on 24/04/10 against Bath - 01/02/2010. All rights reserved