The Asian champion, lacking the raw power of his bigger rivals, trailed the Americans out of the blocks but soon got into the flow of his smooth rhythm in the outside lane.

While he was gently grazing hurdles in the middle section of the race, Trammell and Payne were knocking them flat and by the time the trio were sprinting for the line, Liu had time to turn his head and check he had won.

When he realised he had, a huge beam spread across his face and looked up at a group of his compatriots and pointed both fingers at his face.

"Everything went smoothly tonight, my opponent is myself," he added.

Liu said his next event would be at the IAAF meeting in his native Shanghai at the end of September as he moves ever closer to the highly anticipated defence of his Olympic title in Beijing next August.

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