Coach believes there’s no limit to 18-year-old’s talent while athlete himself says he’s ‘ready for more’

Having cracked the 20-second barrier with a sizzling run over 200m – and in the process fulled comparisons with the great Usain Bolt – the question now is, how fast can Gout Gout go?

“How long’s a piece of string?” said Gout’s coach and mentor, Di Sheppard, after he clocked 19.67sec at the Australian championships in Sydney on Sunday.

The time smashed his own national record of 20.02sec and was good enough for him to become the first Australian to record a legal time under the magical 20-second barrier.

Aidan Murphy quickly became the second, just a step behind with another supremely impressive run in the same race, but Gout grabbed the headlines as he bettered Bolt’s best when the Jamaican sprint great was the same age.