Shelly-Ann Fraser-Pryce was crowned the fastest woman on earth at the culmination of an exciting second day of action at the IAAF World Athletics Championships in Doha. The Jamaican claimed a fourth World Championships gold medal with a blistering run with her son supporting in the crowd. Also winning a fourth World Championships gold was American triple jumper Christian Taylor, whose leap could not be surpassed by his rivals. There was a new world record set in the mixed 4x400m as the Amer
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