Athletics-Richardson signs on for 100m, 200m at Prefontaine Classic

"I'm looking forward to running fast and putting on a show," Richardson said in a statement from the organisers. Richardson finished second in her Diamond League debut in May behind Britain's Dina Asher-Smith, in cold, wet and rainy conditions in Gateshead, England.

American Sha'Carri Richardson will compete in the 100 and 200 metres events at next month's Prefontaine Classic, the Diamond League meet organisers said on Monday, weeks after she completes a one-month ban from the sport. The 21-year-old was seen as the top contender for the 100m at the July 23-Aug. 8 Tokyo Games but her Olympic dreams were cut short after she tested positive for cannabis at the U.S. Track & Field trials in Eugene, Oregon.

The ban wiped out her trials win, stopping her from running in the 100m at the Games, and USA Track & Field (USATF) later declined to include her on the U.S. Olympic relay team. "I'm looking forward to running fast and putting on a show," Richardson said in a statement from the organisers.

Richardson finished second in her Diamond League debut in May behind Britain's Dina Asher-Smith, in cold, wet and rainy conditions in Gateshead, England. Richardson's ban has reignited fierce debate over the use of cannabis in sport, with the White House reportedly seeking a meeting with the World Anti-Doping Agency (WADA) to discuss rules regarding the banned substance.

Richardson's ban ends on July 28 and the Prefontaine Classic runs from Aug. 20-21 at Eugene's Hayward Field, kicking off the Diamond League's post-Olympic series of events.