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Kenya's Ferdinand Omanyala reacts after crossing the finish line to win men's 100m race during the Diamond League Xiamen in Xiamen, China, on Saturday. [AFP]

Africa’s fastest 100m sprinter, Ferdinand Omanyala, has officially confirmed that he is not backing down on his sub-10 seconds campaign this season.

On Saturday, the Commonwealth champion blasted to a historic Diamond League victory in Xiamen, China.

In a show of relentless push to remain on the podium this season, Omanyala delivered a brilliant 9.94 win and a season best in a race that assembled the strongest field.