Melissa Jefferson-Wooden is one win away from becoming the first woman since Jamaican legend Shelly-Ann Fraser-Pryce in 2013 to achieve the world sprint double after she eased into the final on Thursday.
The 24-year-old American timed 22 seconds dead in her semi-final and 2019 world champion Dina Asher-Smith was a well beaten second but the Briton goes into Friday’s showdown.