In the heat of the midday sun, the two greatest female 10,000m runners in history will square off once again. In one corner: Ethiopia’s Letesenbet Gidey, the world record holder. In the other: the Netherlands’ Sifan Hassan, the reigning world and Olympic champion. It should be a race for the ages.
But as they fight it out for gold at 12.20pm local (8.20pm UK time) on Saturday, British eyes will turn to the chasing pack – where the familiar lolloping stride of Eilish McColgan might just be in contention for a shock bronze medal.