Briton Kerr moved to the front straight away, while Norway's Ingebrigtsen sat at the back during a very slow first lap, before he went from last to first to take it up. Kerr sat on his shoulder ...

PARIS (Reuters) - Briton Josh Kerr has declared war on foe Jakob Ingebrigtsen - and the rest of the 1,500 metres Olympic field - as his rivalry with the Norwegian Olympic champion is expected to ...