Michael Phelps

Keller's teammates on the 2004 freestyle relay included Michael Phelps and Ryan Lochte. Keller was wearing a Team USA jacket in this video.

On Monday in Hungary, the 24-year-old from Florida did something no other swimmer in history has done. Not Ryan Lochte or even the great Michael Phelps.

The 2020 Tokyo Summer Games would have started today. However, here are 10 of the top American performances in Summer Olympic history, from Jesse Owens to Muhammad Ali and Michael Phelps.

Phelps had held the world record in his signature event since 2009, but Milak took .78 seconds off it on Wednesday.

It's going down on July 23.

Ranking the top five summer Olympians of all time compels you to omit some extremely worthy athletes.

From the pool to the track to the beach and beyond, the Olympics had a gold-medal weekend in Rio.

Michael Phelps finishes his career with 23 gold medals and 28 overall, 10 higher than the next most successful Olympic athlete.

The decorated Olympian says, 'I've been able to do everything I've ever put my mind to in this sport...I'm happy with how things finished.'

Michael Phelps claimed golds number 20 and 21 in the pool and the U.S. dominated in gymnastics.

Research suggests cupping may be helpful, but many seem reactively against it.

Swimmer's website targeted by same hacking collective that took down Donald Trump's website.

The speedy Olympian Michael Phelps, 29, was clocked traveling 84 miles per hour in a 45-mph zone.

18-time Olympic gold medalist takes to Twitter to say sorry for second DUI.