LOUISVILLE, Ky. -- Blue Grass runner-up Lion Heart breezed four furlongs in 47.8 seconds on Monday after being vanned from Lexington to Louisville.
The chestnut colt also spent about 30 minutes in the Churchill paddock, getting used to the surroundings. He then returned to Lexington.
Trainer Patrick Biancone said he would decide later when he would return Lion Heart to Churchill for his final Derby preparations. He's keeping the colt at Keeneland to avoid the heavy volume of horses at Churchill this week.
"We're trying to keep all his nerves controlled for Saturday," said Biancone.
Lion Heart was one of five Derby hopefuls to work on Monday.
Lexington Stakes winner Quintons Gold Rush hit the track before dawn, covering five furlongs in 1:01.4.
Later in the morning, Blue Grass winner The Cliff's Edge went five furlongs, finishing in 1:01.
Fountain of Youth winner Read the Footnotes, who arrived at Churchill on Friday, worked four furlongs in 47.6.
Rock Hard Ten, which still hasn't qualified to enter the Derby, covered five furlongs in 59.4. The impressive dark bay colt is 22nd on the current graded stakes earnings list and only the top 20 qualify for the Derby.