O’Brien hoping lightly-raced Cairo can throw his hat into the ring.

O'Brien hoping lightly-raced Cairo can throw his hat into the ring.

For the first time, Ballydoyle will have a representative in each of the Longines Group 1 Hong Kong International Races on Sunday at Sha Tin.

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A tilt at the Kentucky Derby could be on the cards for Aidan O'Brien's Cairo if he can can follow in the hoofprints of Mendelssohn in winning the UAE Derby on Saturday.