The list of Preakness contenders set to test Big Brown grew today as Hey Byrn, Icabad Crane and Riley Tucker are now confirmed starters upping the field for $1 million classic to 12.

Icabad Crane won the Federico Tesio Stakes at Pimlico on April 19 for trainer Graham Motion. Jeremy Rose, who captured the 2005 Preakness aboard Afleet Alex, is riding him.

Hey Byrn, who won the Grade III Holy Bull Stakes at Gulfsteam Park on April 12, would be bound for the Preakness.

Riley Tucker is headed to Baltimore for the middle jewel of the Triple Crown. The Bill Mott trainee has finished in the money six times in seven lifetime starts. Former Maryland riding star Edgar Prado will be aboard the son of Harlan’s Holiday. Prado became the 19th jockey in thoroughbred racing history to win 5,000 races and he rode Barbaro to victory in the 132nd Kentucky Derby.