Phelps produces more magic for another gold

Michael Phelps won the 17th Olympic gold medal of his career, and his 21st overall, when he produced a majestic performance in the 100m butterfly.

It was the final individual race of the 27-year-old’s career, which will end tonight in the medley relay.

Last night, the Baltimore swimmer was seventh at halfway, with nemesis Milorad Cavic first, before the American produced a customary storming final length to touch in 51.21secs.