KONRAD BUKOWIECKI and Neeraj Chopra set two world under-20 records in a championships of high standards.
As a defending champion from the host country, shot-putter Bukowiecki was the poster boy of the championships and he lived up to his billing with a 23.34m heave with the 6kg implement lighter than the one used in senior competition.
USA topped the 4x100m podium ahead of France and Germany
GETTY IMAGES & JEAN-PIERRE DURAND