The Latest on Russia's appeal against the Olympic ban on its track and field athletes (all times local to Rio de Janeiro):
7:56 a.m.
Jamaican sprinter Usain Bolt says Russian athletes being banned from the Rio de Janeiro Olympics will "scare a lot of people" thinking about doping.
A Court of Arbitration for Sport ruling earlier Thursday confirmed an IAAF ban on Russian track and field athletes from competing at the Rio de Janeiro Olympics.
Bolt, the winner of six Olympic gold medals, says "this will scare a lot of people, send a strong message.