Gout Gout has pledged to come back bigger and better after his thrilling run to the 200m semi-finals at the world championships in Tokyo.
At 17 and the youngest man ever to represent Australia at a world titles, the schoolboy sensation was eliminated in the 200m semis on a wet evening in the Japanese capital.
He finished fourth in 20.36 seconds in a semi won by rising Jamaican star Bryan Levell in 19.78.
