New Zealand's shot put sensation Jacko Gill will defend his world junior shot put title in Barcelona on Thursday morning. (NZT)
Gill will be defending the under-20 title that he won two years ago in Moncton, Canada as a 15-year-old, before he went on to win at the world youth (under-18) championships last year in Lille, France.
The Takapuna 17-year-old is over a metre ahead of his nearest rival and leads the world junior rankings for 2012 with the 6kg shot with 22.30m.
Gill had a best of 22.31m in 2011 and his closet rival, Krzysztof Brzozowski of Poland, has a 2012 best of 21.14m.
Brzozowski is the only person to have beaten Gill in age-group competition, at the 2010 Youth Olympic Games in Singapore with the 5kg shot, while Australian Damien Birkinhead is ranked third with 21.12m.