Over the hardest three laps of his life, Cole Hocker clung on with the stubbornness of a mule. Then, in an Olympic 1500m final for the ages, he kicked like one.
It took the 23-year-old American past the fading Tokyo gold medallist Jakob Ingebrigtsen of Norway. Then, in an extraordinary last few yards, Britain’s world champion Josh Kerr. And suddenly, and without warning, a 37-1 underdog from Indianapolis had shaken up the world.
