Russia Will Be the Cleanest Team at the Olympics

Which nation will field the most doping-free team at the Rio Olympics, due to start on Aug. 5? Russia, the country that narrowly avoided a blanket ban from the games for drug abuse.

On Sunday, the International Olympic Committee's executive board decided that Russian athletes will not enjoy a presumption of innocence -- in other words, they will all be considered potential dopers and subject to "a rigorous additional out-of-competition testing program." Following a series of reports from the World Anti-Doping Agency, which documented a state-sponsored system of enhancing athletes' performance with forbidden substances, the IOC barred all Russians who have ever been disqualified for doping. It has also told international federations responsible for specific sports events to examine all Russian athletes' anti-doping records, only taking into account "reliable adequate international tests."