Lashawn Merritt

Rio Olympics 2016: Usain Bolt unsure of facing clean athletes during his sprints

Six-time Olympic gold medal winning sprinter Usain Bolt has admitted there are no guarantees he will be defending his sprint titles against a completely clean field in Rio 2016.

Olympics 2016: Usain Bolt gunning for 'Triple triple' after overcoming injury scare

By his own charismatic admission, Usain Bolt is a living legend. But if the Jamaican sprint king pulls off only part of his stated goals in Rio de Janeiro, a whole new vocabulary of superlatives will be required.