Michael Phelps Gets Emotional While Watching New Under Armour Commercial

Michael Phelps has had one of the greatest careers any athlete has ever had and will likely go down as the most decorated Olympian of all time.

Now, as the 30-year-old prepares to swim in his fifth and final Olympics, he can't help but get choked up as he looks back at his career.

Under Armour created a new commercial in honor of Phelps that not only looks ahead, but back as well. When the 18-time Olympic champion and his fiancee, Nicole, watched the new spot at Under Armour headquarters, they became emotional:

Phelps was appreciative:

"

New #RuleYourself spot featuring @MichaelPhelps drops tomorrow. See his emotional reaction the first time he saw it.https://t.co/gc6OclXLOB

— Under Armour (@UnderArmour) March 7, 2016"

It's a great tribute for an all-time Olympian.

[Under Armour, Twitter; h/t USA Today's FTW]