Senior IAAF official Nick Davies temporarily steps down amid ethics probe Author:SI StaffPublish date:Dec 22, 2015LONDON (AP) Senior IAAF official Nick Davies temporarily steps down amid ethics probe.Latest NewsChelsea wastes 2-goal lead in draw with Sheffield UnitedLaporte injury mars Man City's win over BrightonKvitova makes quick work of Bencic, eases into Round of 16Mayakoba Golf Classic: Preview, tee times, odds, picksRaiders in discussions to trade Amari Cooper, Karl Joseph