WATCH: emotional tribute to Phelps retirement

WATCH: emotional tribute to Phelps retirement

After a turbulent career as the greatest swimmer in history, Michael Phelps has announced that this summer's Olympic Games in Rio de Janeiro will be his last.

Michael Phelps

Five months away from the of the Olympic Games, Under Armour is already celebrating 18-time gold medalist's last hurrah with a stirring new commercial that offers an inside look at the intense training regimen behind all of those world records.


The 90-second spot, which debuted at an event in Phelps' hometown of Baltimore this week, is part of the sportswear brand's ongoing "Rule Yourself" campaign, which puts a spotlight on all of the grueling hard work that comes before the nail biters and winning celebrations that most people ultimately see on TV. 


Its tagline: “It’s what you do in the dark that puts you in the light.”

His reaction to the first time Phelps saw the video is amazing.

Phelps made the same promise about the 2012 Olympics, then jumped right back in the pool to train again afterwards, so his vow is best taken with a grain of salt.

#JustSaying 

Show's Stories