Michael Phelps reflects on mind-blowing golden career

Phelps won a 20th Olympic gold — and 12th individual title — with a dominant victory in his signature event, the 200m butterfly, before anchoring the US to gold in the 4x200m freestyle relay.
A disbelieving Phelps was still absorbing his achievement as the most decorated Olympian in history, with 25 medals in all, when he targeted further success in his fifth and final Games.