MICHAEL PHELPS: Here's a look at the historic career of the greatest Olympian ever

Michael Phelps seems to be enjoying his life in retirement.

After winning 28 Olympic medals, he now seemingly has more endorsements than ever, he has more time to golf, and spends a lot of time just hanging out with his family, including his son Boomer. 

He's even planning to race a shark!

Phelps turned 32 on Friday, and while he says he is done winning Olympic medals, there are still a lot of people holding out hope for one more sprint towards glory at the 2020 Tokyo Olympics.

In the meantime, let's take a look back at his storied career. 

Emmett Knowlton contributed to this post.