DEL MAR, Calif. – My Boy Jack, a three-time stakes winner who was fifth in the Kentucky Derby in May, has been diagnosed with a bone chip in an ankle that will require surgery.
My Boy Jack will miss the remainder of the year. Kirk Godby of Don’t Tell My Wife Stables, which co-owns the colt with Monomoy Stables, said My Boy Jack is expected to return to racing as a 4-year-old in 2019. The injury was detected after My Boy Jack finished eighth of nine in the Grade 1 Belmont Derby on July 7.