05/02/2006 12:00AM

Etc. . . .

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Last year's Epsom Derby winner, Motivator, has been withdrawn from stud duty at the Royal Studs in Sandringham, England, after sustaining a slight injury during exercise, the Racing Post reported Tuesday. The 4-year-old Motivator slipped while out at exercise and is sore in his hind end, said syndicate manager John Warren.