Johannes Liebmann breaks world record in men's 1,500m freestyle

In short:

Germany's Johannes Liebmann has broken the men's 1,500m freestyle world record with a time of 14 minutes 26.79 seconds.

The teenager has become the first swimmer to dip under the 14 minutes 30 seconds barrier.

American Kate Douglass reclaimed the women's 50 metres freestyle world record by registering a time of 23.49 seconds