Usain taking his best shot

Sprint great Bolt kicks off latest bid to earn pro contract with Australia's Central Coast Mariners

GOSFORD, Australia - Usain Bolt has taken the first tentative steps towards launching a pro soccer career after the sprint king joined Australian side Central Coast Mariners for his first training session on Tuesday.

Wearing gloves and tracksuit bottoms on a mild winter's day, the Jamaican did some light stretching, jogging and ball work with the rest of the squad in his first workout since being given the chance to win a playing contract with the A-League team.