There's just no contest: Michael Phelps is the greatest Olympian of all time. He's racked up 28 medals (23 of them gold) and shattered world records. He's gone into retirement and come back out.

Michael Phelps swam against a Great White Shark in ... helped even the playing field a bit — and Phelps put on his game face and gave it his best shot. In the end it turned out that Phelps ...

RELATED VIDEO: Michael Phelps’s Intense Face Launches a Thousand Memes Before Race Against Chad le Clos Father and son are incredibly close, with Bert cooking and taking care of his son.

He raked in Olympic gold, but Phelps was quietly wrestling with anxiety and suicidal thoughts For more than a decade, Michael Phelps ruled the pool, holding the all-time record for Olympic medals ...

There, in early 2001, Michael Phelps set the first world record of ... known as the coronation of a man who would emerge as the Face of Swimming for more than a decade, and the greatest Olympian ...

He also oversees the Michael Phelps Foundation. The mission of the foundation, which he founded in 2008, is to make the world a healthier and safer place by to helping more people learn to swim.