Fred Kerley (front) of the U.S. , Guyana’s Emanuel Archibald (left) and Trinidad And Tobago’s Jerod Elcock in action during the heat of the World Athletics Championships,Men’s 100 Metres at Hayward Field, Eugene, Oregon, U.S on Friday.

Fred Kerley (front) of the U.S. , Guyana's Emanuel Archibald (left) and Trinidad And Tobago's Jerod Elcock in action during the heat of the World Athletics Championships,Men's 100 Metres at Hayward Field, Eugene, Oregon, U.S on Friday.
Fred Kerley (front) of the U.S. , Guyana's Emanuel Archibald (left) and Trinidad And Tobago's Jerod Elcock in action during the heat of the World Athletics Championships,Men's 100 Metres at Hayward Field, Eugene, Oregon, U.S on Friday.
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