5 to watch at the Kentucky Derby
A look at five 3-year-olds to watch when the starting gate springs open.
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Gemologist
He's the lone undefeated horse in the field with a 5-0 record, including a powerful run in the Wood Memorial where he took the lead and held off Alpha. Nearly as tall as Union Rags, the son of 2000 Horse of the Year Tiznow has not been battle-tested like others in the field. However, he has won twice at Churchill Downs. Leaving from the No. 15 post, the colt should be running just behind the front pack and have a clear shot at the leaders when the field turns for home.
Credit: AP Photo/Charlie Riedel
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