The Olympic 100m hurdles champion Brianna Rollins has been banned for a year by the United States Anti-Doping Agency after missing three drugs tests in 2016 - two of them after she forgot to update her whereabouts details when she was attending a fete of honour in her hometown and travelling to the White House to meet the president.
Usada says her results from 27 September - the date of her third whereabouts failure - will be disqualified, meaning the world champion will be allowed to keep the Olympic medal she won in August.
American Brianna Rollins shows off her gold medal from the 100m women's hurdles at the Rio Olympics.
The U.S. Anti-Doping Agency said Rollins was not available for testing three times previous year, which constitutes an anti-doping violation.
As a member of the USADA testing pool, Rollins is subject to whereabouts requirements enabling her to be tested out-of-competition.
"I accept full responsibility for my mistakes that have led to my suspension and I am disappointed I will have to miss the coming outdoor season, as a result of my confusion over how the whereabouts programme worked", said Rollins in a statement issued by her lawyer Howard Jacobs.
The 25-year-old former Clemson University star testified that she thought the system would automatically update her data to indicate she would be away from home after she entered notice that she would be competing in the Drake Relays in Iowa in late April. In the whereabouts system, athletes must not only account for where they will be each day, but they must specify one hour a day where they will be at a specific location.
Rollins won Rio gold in the absence of Pearson and world record-holder Kendra Harrison in the unremarkable time of 12.48 seconds. This is a very unpleasant experience, but I am able to see where errors were made. "It did nothing to inquire with its athlete as to the circumstances and to assure future compliance".
She also passed all eight in-competition drug tests she took past year. (Rollins') own sports agency did not involve itself in her compliance activities or problems.
"It is with my deepest regrets that I will have to miss the 2017 outdoor season", Rollins said in a statement.
Ramon Clay, the company's USA athlete liaison, attended the arbitration hearing as a witness for Rollins and told the panel he only learned of the series of missed tests after the fact.