World Athletics Championships: Nigeria's Tobi Amusan smashes women's 100m hurdles world record
Watch as Nigeria's Tobi Amusan smashes the women's 100m hurdles world record with a time of 12.12 seconds beating USA's Kendra..
BBC News
Watch as Nigeria's Tobi Amusan smashes the women's 100m hurdles world record with a time of 12.12 seconds beating USA's Kendra..