Rio Games-bound athletes from Jamaica, a nation that is no
stranger to doping scandals, went through a drug-testing
program the head of the Jamaica Olympic Association (JOA)
calls a "model for many other countries".
Russia has named a track and field team for the Rio Olympics
which includes gold medallists Yelena Isinbayeva and Ivan
Ukhov among 68 athletes who are hoping an IAAF ban on them
competing will be lifted by sport's highest court later this