Two new global 100m champions are crowned in Tokyo as America's Melissa Jefferson-Wooden and Jamaica's Oblique Seville claim world titles.

The American Jefferson-Wooden capped an undefeated year, while the Jamaican Seville won his first major international medal.

Two new global 100m champions are crowned in Tokyo as America's Melissa Jefferson-Wooden and Jamaica's Oblique Seville claim world titles.

Melissa Jefferson-Wooden won her first world title and conjured up one of the most spectacular 100 metres performances in history