Lightning Bolt strikes a third time as Jamaican streaks into the history books with 100-metre gold

Usain Bolt roared into Olympic history here on Sunday, capturing an unprecedented third consecutive 100m crown to confirm his place in the pantheon of the greatest athletes the world has ever seen.

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The 29-year-old Jamaican legend, competing in his final Olympics, powered over the line in 9.81 seconds, vanquishing drug-tainted American rival Justin Gatlin who took silver with Andre De Grasse of Canada claiming bronze.