Swimming-Titmus stuns Ledecky to win 400 freestyle world title

Australian teen Ariarne Titmus shocked Olympic champion Katie Ledecky to win the 400 metres freestyle title at the world championships in Gwangju on Sunday.

The 18-year-old came home in a time of 3:58.76 ahead of Ledecky (3:59.97), who had been gunning for a fourth straight world crown in the event, with Leah Smith in third (4:01.29).