mark Bolt showcased his gruelling fitness workout in his fitness video . The Olympic athlete wants to stay injury free this season . he is scheduled to run in the ' marathon a Mano ' in Rio de Janeiro in 2019 .
Usain Bolt showcased his gruelling gym workout in his Instagram video . The Olympic champion wants to stay injury free this season . Bolt is set to run in the 'Mano a Mano ' in Rio de Janeiro in April .