Bolt cements his greatness

Usain Bolt of Jamaica crosses the finish line to win gold. [Photo/Agencies]

If he did it would mark the 10th anniversary of the last time he lost a major international 200m race, when he finished second to American Tyson Gay in 2007. He lost in the Jamaican trials to Yohan Blake in 2012

Since then, his 200m tally is three successive Olympic titles and four consecutive world championships - another first.

"I've just proven to the world that you can do it clean, with hard work and determination," he said.

"I have made the sport exciting, made people want to see the sport, want to watch the sport, I just put the sport on a different level."