Sprinter Sha'Carri Richardson's speed, swagger return in time for U.S. nationals

Sprinter Sha'Carri Richardson appears to have both her speed and swagger back for the U.S. track and field championships.

A victory this week at Hayward Field in Eugene, Ore., and it's on to the world outdoor championships, the sport's highest-profile event outside of the Olympics. Richardson missed out on the Tokyo Games because of a failed drug test for marijuana.

Known for her flashy track suits, fingernail extensions and ever-changing hair colours, Richardson certainly doesn't lack confidence.

"Don't let the media, don't let people, don't let a company, try to stop you from shining, because you sunshine," Richardson said as cheering young fans called her name at a recent race in New York. "We are the light."

Richardson is entered in both the 100 and 200 meters at the national championships, which kicks off Thursday in the Oregon city known as "Track Town." If she places in the top three in those events, she move on to worlds next month, also at Hayward Field.

Richardson garnered attention last summer when she won the 100 metres at the Olympic trials, which determined the team for Tokyo. But her title was stripped after she tested positive shortly after the race.

She was handed a 30-day suspension that kept her out of the event in Tokyo, and she was also left off the U.S. team as part of the relay pool, although her suspension would've been completed by the time of the 4x100 race.

She acknowledged the mistake in an interview with the "Today" show after her suspension. She said she used marijuana as a way of coping with her mother's recent death. But on Twitter this week she lamented the interview: "I wish I never did this. I wish I had the choice when it was time for me to tell my story."

I wish I never did this . I