Nathan Adrian is a 2012 Olympic champion in the 100m freestyle, who returns for his third Olympic appearance at the 2016 Rio Games.
Adrian nearly missed the 100m freestyle final-- qualifying last place in the 16-man field. However, he battled back to win his semifinal heat on Tuesday night with an impressive time of 47.83 seconds.
Adrian and Caeleb Dressel will represent the United States in the men's 100m freestyle final in Rio.
A graduate of the University of California at Berkeley, the 27-year-old athlete also models for Speedo swimwear and is Tommy Hilfiger's menswear ambassador.
Click through the photos the see, and learn more about the 6-foot-6 American swimmer. (Instagram)