Best Olympic Quotes 2016: 7 Motivational Sayings From Olympians For The Summer Games In Brazil

The world's best athletes will converge in Brazil this week for the 2016 Rio Olympics. The games officially begin Friday and are scheduled through Aug. 21. 

This year's event is full of controversy. Dozens of Russian athletes have been banned from the Olympics, including the entire track and field team, over doping allegations. Many athletes have also opted to stay home because of Zika, a virus spreading across Brazil and other Latin American nations that is suspected of causing birth defects.