A stubborn left front foot issue has sidelined Silent Tactic from the Derby. Great White draws into the race as a 50-1 longshot with much to prove. But he's a big boy.

Great White moves into the Kentucky Derby field, replacing Arkansas Derby runner-up Silent Tactic, who was scratched with a bruised foot.

A stubborn left front foot issue has sidelined Silent Tactic from the Derby. Great White draws into the race as a 50-1 longshot with much to prove. But he's a big boy.