the published ruling from her disciplinary hearing.On one occasion her phone ran out of battery power overnight, and another time she changed number to avoid harassment from an unknown individual, the ruling stated.Stevens can appeal against the ban at the Court of Arbitration for Sport.A 200-meter specialist, Stevens placed seventh in the final at the 2016 Rio de Janeiro Olympics, and fifth at the 2017 world championships in London.Stevens was the 2017 national champion over 200 and a former NCAA champion in the 4x400 relay running for the University of Oregon.___More AP sports: https://apnews.com/apf-sports and https://twitter.com/AP_Sports.