&copy; Licensed to London News Pictures. 02/12/2015. London, UK. NICK DAVIES (left) and Lord SEBASTIAN COE (right) leaving the Houses of Parliament in London after giving evidence before a Commons Culture Media and Sport committee on blood-doping allegations. Lord Coe's chief of staff Nick Davies has stepped aside while the IAAF ethics committee investigates reports he tried to delay the identification of Russian drug cheats..   Photo credit: Ben Cawthra/LNP