American swimmer Caeleb Dressel eclipsed Phelps' world record in the 100-meter butterfly Friday at the world championships in South Korea.
Another Michael Phelps record falls: American Caeleb Dressel shatters world record in 100-meter butterfly
American swimmer Caeleb Dressel eclipsed Phelps' world record in the 100-meter butterfly Friday at the world championships in South Korea.
