 Complete the following phrase:  Yomif Kejelcha made his international debut at the 2013 World Youth Championships in Donetsk, winning gold in the boys 3000 metres with a time of 7:53.56. At the Ostrava Golden Spike elite meeting in May 2014 he placed second over 3000 metres in 7:36.28, losing only to Kenyas Caleb Ndiku; he defeated 2008 Olympic medallist Nick Willis and former World Champion Bernard Lagat. Yomif won the 5000 metres at the 