Katie Ledecky is competing in her second Olympics in Rio.

Her gold medal in the 800m freestyle during the London Games was a major upset, but now with nine world championship gold medals from 2013 and 2015, Ledecky is poised for a breakout summer during the 2016 Games.

For more on the Olympic swimming star, watch the video above.

Thumbnail photo via Erich Schlegel/USA TODAY SPORTS Images