With a hard-fought 1500m bronze medal safely in her keeping, Jessica Hull is ready to take a "free swing" at the 800m at the world championships in Tokyo.
For the 28-year-old Hull, the 1500m is all about business.
And a key part of that business is continually coming up against the greatest middle-distance runner of alltime in Faith Kipyegon, who won a fourth 1500m world title in commanding style on Tuesday night.
