Defending champion Angelique Kerber loses in 1st round of US Open Author:SI StaffPublish date:Aug 29, 2017NEW YORK (AP) Defending champion Angelique Kerber loses in 1st round of US Open.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