Ben Johnson thinks doping is worse than 30 years ago

In an interview with Radio Jamaica, Johnson said he believes not much has changed from his era to now

Jamaican sprint legend Shelly-Ann Fraser-Pryce to retire after Paris Olympics

Fraser-Pryce has won eight Olympic medals and 10 world championship titles throughout her 19-year career

WATCH: World 100m champion dusts parents at school race

Shelly-Ann Fraser-Pryce takes no chances, destroying the field by a landslide