Gregorio Paltrinieri of Italy competes during the men's 1500m freestyle final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 13, 2016. Gregorio Paltrinieri won the gold medal. (Xinhua/Cao Can)
Gregorio Paltrinieri of Italy competes during the men's 1500m freestyle final at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 13, 2016. Gregorio Paltrinieri won the gold medal. (Xinhua/Cao Can)