Full coverage: 2016 Rio Olympics
Usain Bolt says it would mean everything to win a triple-treble of Olympic gold medals in Rio. Bolt, who won the 100 and 200 meter sprints as well as the four-by-100 meter relay in both London and Beijing, has also played down his recent injury concerns saying he is raring to go. CCTV's Dan Williams caught up with the fastest man on the planet in Rio de Janeiro.
