A month-and-a-half ago, Elaine Thompson-Herah thought she wouldn't be able to compete at Tokyo 2020 as she struggled to overcome a nagging Achilles injury. Now, she's not only a gold medalist, but an Olympic record holder, too.   Her time of 10.61 seconds at the women’s 100m final on Saturday broke Florence Griffith-Joyner's 33-year-old record set in Seoul, spearheading a Jamaican clean sweep of the podium with Shelly-Ann Fraser-Pryce in second and Shericka Jackson taking bronze.   The victory was the 29-year-old's third Olympic gold medal, adding to her 100m and 200m titles from Rio five years ago. (📷 Cameron Spencer/Getty Images) . . . #elainethompsonherah #shellyannfraserpryce #sherickajackson #womens100m #olympicgold #olympics #tokyo2020 #instasport