Stock image TAMPERE, FINLAND, July 11: OSCAR SMITH (BAH), XIN XU (MAC), FILIP JAKOB DEMSAR (SLO), OLEKSIY OVCHARENKO (UKR), SILUSAPHO DINGISWAYO (RSA), in 110 metrs hurdles Heats on the IAAF World U20 Championship in Tampere, Finland 11th July, 2018.