Watch: Daniel Wiffen caps 'hardest ever period' with world record 84 days ago

Daniel Wiffen reflects on his "hardest ever period" after breaking the 800m freestyle world record to clinch his third gold medal at the European Short Course Championships in Romania.

The 22-year-old finished in 7 minutes 20.46 seconds, shaving over two seconds off a record held by Australian Grant Hackett, which stood for 15 years.

He also clinched the 1500m and 400m freestyle gold medals in Bucharest.