The 400m hurdles world champion Karsten Warholm broke the second fastest time in history and broke his own European record (46 "87) on Sunday in Stockholm.
Warholm cut 5 hundredths from his old mark, established last year in Zurich (46''92). He already held the second all-time world performance behind American Kevin Young's world record (46''78) set in 1992.
Zambian Samuel Matete (Africa record holder 47''10 since 1991) and Senegalese Amadou Dia Ba (47''23 in 1988) are respectively 7th and 9th best performers in the World Top 10.
