Meet Léon Marchand, the French Swimmer Who Broke Phelps' Record

He beat the long-standing record by a smashing 1.34 seconds on Sunday, making him the world record holder in the long course 400m individual medley.

French Swimmer Breaks Michael Phelps' Last Remaining World Record

Leon Marchand sets 400 IM record, last individual mark of Michael Phelps - ESPN

Meet Léon Marchand, the French Swimmer Who Broke Phelps' Record

France's swimming phenom Leon Marchand and the race for Michael Phelps' world record

Katie Ledecky's 800 free win breaks golds tie with Michael Phelps - ESPN

French swimmer breaks Michael Phelps' last individual record - Field Level Media - Professional sports content solutions

Leon Marchand crushes Michael Phelps' last world record at swimming worlds - NBC Sports

Leon Marchand leads French team into World Aquatics Championships looking to gather momentum ahead of home Olympics

Leon Marchand joins legends with third gold medal of swimming worlds - NBC Sports

French star Leon Marchand breaks Michael Phelps' 400-meter IM world record

Leon Marchand takes down the greatest to ever do it; Australia takes four gold medals on first night of swimming

Marchand smashes Phelps's last remaining world record - SportsDesk

Michael Phelps' Final Individual Swimming Record Broken by 21-Year-Old Leon Marchand, News, Scores, Highlights, Stats, and Rumors

Léon Marchand is France's new swimming star in perfect timing for Paris Olympics, Olympics