2007 highlight: World 400m champion

A gold medal winner against the odds, she claimed a shock triumph after returning from a suspension for missing three drugs tests.

Her 400m world athletics win in Japan was only her fifth race in 13 months. She clocked a personal best of 49.61 seconds - 24 days after completing a one-year ban.

The Londoner was the first British woman to win a world track gold since Sally Gunnell in 1993.