The Latest on Russia's appeal against the Olympic ban on its track and field athletes (all times local to Rio de Janeiro):
8:15 a.m.
Russia has canceled a ceremonial send-off for its Olympic athletes heading to Rio, as the prospect of a ban for Russia's whole team looms.
The Court of Arbitration for Sport on Thursday upheld a ban on Russia's track and field team imposed due to widespread doping.
That ruling could encourage some international sports officials calling for a ban on Russia's entire delegation across all sports, following allegations the government organized a mass doping cover-up.