John Clay: Blue Grass Stakes features several trainers who know their way to the winner’s circle

One thing’s for sure: Come Saturday’s Grade 1 Toyota Blue Grass Stakes at Keeneland, trainer Kenny McPeek won’t have any trouble finding his horses.

McPeek trainees Rattle N Roll and Smile Happy drew side-by-side posts — No. 9 for Rattle N Roll and No. 10 for Smile Happy — in the field of 12 for the $1 million Kentucky Derby prep race that will be televised on both TVG and NBC. Post time is scheduled for 5:10 p.m.

Rattle N Roll was a surprise entrant, given the winner of last year’s Grade 1 Claiborne Breeders’ Futurity raced just two weeks ago when he finished fourth in the Grade 2 Louisiana Derby at the Fair Grounds on March 26. He was reportedly also under consideration for the Stonestreet Lexington Stakes on April 16 at Keeneland.