USADA said in a statement that Rollins, 25, had received the sanction for "a combination of three whereabouts failures within a 12-month period."
As a member of the USADA testing pool, Rollins is subject to whereabouts requirements enabling her to be tested out-of-competition. According to a statement by USADA, the IAAF found Rollins unavailable for testing on April 27 2016, September 13 of the same year, and again just two weeks later on September 27.
Rollins completed eight out-of-competition tests over the course of 2016, but a three-member panel of the American Arbitration Association (AAA) determined that she should receive a 12-month sanction for failing to properly file whereabouts information.
USADA said Rollins’ 12-month period of ineligibility began on December 19, 2016. However, Rollins’ competitive results obtained on and subsequent to the date of her third Whereabouts Failure, have been disqualified.
Additional reporting by Reuters.
Read the original article on Eurosport: Olympic hurdles champion Rollins handed one-year ban for 'whereabouts failures'