American swimmer Lilly King wasn't afraid to share her views on Olympic drug cheats

King had already "stirred it up", in her own words, in the build-up to the race by wagging her finger at the "cheating" Russian.

American swimmer Lilly King defeated Yulia Efimova in the Rio Games' most dramatic race so far and then told both her Russian rival and US team-mate Justin Gatlin that neither should be at the Olympics.

The 19-year-old King broke the Olympic record for the 100 metres breaststroke to beat four-time world champion Efimova in a contest that combined Cold War tension with the raw emotion of the ongoing debate about doping.