the key lessons from Epsom on Cazoo Oaks day

Tuesday showed that Aidan O'Brien is the man to fear in Classics. Emily Upjohn showed disaster lurks everywhere at Epsom. The final pieces of the Epsoms jigsaw were put in place on Friday. David Carr assesses what the action on the first day of Cazoo Derby told us about the Cazaoo derby itself.

Aidan O'Brien has won 40 Classic titles.

Trusting the trainer is rarely a bad policy. Stone Age, Changingoftheguard and Star Of India must be taken seriously when they bid to give O'Brien a record-extending ninth Derby win on Saturday.

Emily Upjohn was slow to stride in the Oaks at Epsom. She recovered from the two or three lengths she lost to race not far off Tuesday. The winner had an ideal pitch on the rail, but Emily Up john was stuck on her outside.

The place should carry a health warning for punters.

Everyone has a chance on Oaks day at Epsom. William Buick won with a couple of textbook rides. The position of the winners on the day was mixed.

The ground should not be an issue for anything in the field on Saturday. The race times suggest that conditions were no softer than good on the meeting's opening day.

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