Champion sprinter Aerovelocity won't race again for at least three months and trainer Paul O'Sullivan says he will have no hesitation retiring the eight-year-old if he fails to show his usual spark next preparation.

After winning a second Hong Kong Sprint in December Aerovelocity finished last in last week's Group Two Centenary Sprint Cup and O'Sullivan has cancelled a planned trip to Japan's Takamatsunomiya Kinen.

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