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