Frankie Dettori says he is “very chilled” as he prepares to ride in the Betfred Derby for the last time at Epsom on Saturday.
And the 52-year-old believes he has “a very good chance” of winning the £1.5 million Classic on his mount 6-1 chance Arrest.
Dettori, who has announced he will retire in the autumn, has won the Derby twice, on Authorized in 2007 and Golden Horn eight years later.
