Josh Kerr breaks 26-year-old mile world record by half a second in London

Great Britain's Josh Kerr broke the world mile record at the London Diamond League meeting at London Stadium, improving on Moroccan Hicham El Guerrouj's mark that had stood since 1999 by half a second. The record is one of the most enduring in athletics history, surviving for 26 years. Kerr's run is a landmark moment for British middle-distance running.