RIO DE JANEIRO, July 27, 2016 (Xinhua) -- Artistic gymnastics athletes Daria Spiridonova, Angelina Melnikova, Maria Paseka, Seda Tutkhalian, Aliya Mustafina (L-R) of Russia leave after a training session for the Rio 2016 Olympic Games at the Rio Athlete's Park in Rio de Janeiro, Brazil, July 26, 2016. (Xinhua/Li Ming)