Yohan Blake focused on Olympics

Reigning world 100 metre champion, Jamaica's Yohan Blake says he will not be overawed by the presence of the world's best sprinters in the blue riband  event at this summer's Olympic Games in London.

While he is focused on preparing for both the 100 and 200 metres, it is the shorter sprint that has the 22 year old speed merchant chomping at the bit.

Blake was the featured sports personality on this week's edition of CNN’s "Human to Hero” series.