Singleton has been watching the Games develop in Guadalajara and admitted his surprise at Wallace's success.

"That was quite a shock! We didn't expect that," Singleton said.

"I was really happy watching that though as it shows Team USA is much stronger, so you better watch out in London next year.

"America is known for sprinters and Jarryd Wallace has come in there and shown we've got one more world class competitors.

"This era could be the best for amputee sprinting you will ever see."

Singleton who also believes the race for Paralympic gold in the 100m will  be the highlight of London 2012 as he also face serious competition from Wallace and Oscar Pistorius.

"Next year in London is going to be something very special indeed," he predicted.

"When I look at it everyone is a competitor.

"When you're sleeping I'm working, and when you're working, I'm still working so you better not go to sleep.

"Jarryd's time was fast but when it comes down to it, it's a Championship, and it doesn't matter too much what time you run.

"In Championships I don't race for times, I race for medals.

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