Usain Bolt through but Ryan Bailey runs 9.88 seconds
Defending Olympic champion Usain Bolt wins his men's 100m heat with a time of 10.09 seconds to qualify for Sunday's semi-finals at the Olympic stadium.
Bolt's training partner Yohan Blake is slightly quicker than his compatriot winning his heat in 10 seconds flat.
American duo Justin Gatlin and Ryan Bailey look in good shape, clocking 9.97 and an impressive 9.88 respectively.
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