Showing Up, the Lexington Stakes winner, worked four furlongs in 49.63 seconds Monday morning at Belmont Park in preparation for Saturday's 132nd Kentucky Derby. Jockey Cornelio Velasquez was up for the move.

Trainer Barclay Tagg said he thought the work was a little slower than he was looking for, but still plans to send the unbeaten colt to Louisville on Thursday for Saturday's 132nd Kentucky Derby.

Belmont clockers timed Showing Up's first quarter in 24 seconds and caught him galloping out five furlongs in 1:03.60.

Trainer Dan Hendricks waited until 8:30 a.m. before finally deciding to work Brother Derek on Monday, and another hour for the arrival of jockey Alex Solis.

Brother Derek, the likely favorite for Saturday's Kentucky Derby, breezed a half-mile in 49.36 seconds over a muddy track at Churchill Downs. Brother Derek was one of three Derby hopefuls to work on Monday morning, along with Storm Treasure and Private Vow.

A.P. Warrior, who won the San Felipe Stakes at Santa Anita in March, worked six furlongs in 1:13.80 at Hollywood Park on Sunday.

Ridden by exercise rider Ramon Guerra, A.P. Warrior worked in company with stablemate Yankee Million. A.P. Warrior started five lengths behind Yankee Million, drew even on the outside with a quarter-mile remaining and was stronger through the stretch, finishing a length in front.

A.P. Warrior finished third in the Santa Anita Derby in his last start.

Ramon Dominguez will ride Bluegrass Cat in the , trainer Todd Pletcher confirmed Sunday morning.

Dominguez replaces John Velazquez, who was injured in a spill two weeks ago at Keeneland. This will be the third straight Derby in which Dominguez has ridden. In 1994, he finished ninth board Tapit. Last year, he finished last on High Limit.

"He's a patient rider and we would like to see the horse settle in mid pack," Pletcher said in explaining his decision. "I don't think he's a very difficult horse to ride."

LOUISVILLE, Ky. - It was the perfect storm. With the Kentucky Derby just one week away, trainers on edge about getting in final works for the race, and rain fast approaching, 13 3-year-olds whose connections are desirous of running in the 132nd Derby on May 6 recorded workouts as light rain fell on Saturday morning at Churchill Downs.

LOUISVILLE, Ky. - The forecast for rain Saturday and into Sunday in the Louisville area caused several trainers to move the all-important final work for their Kentucky Derby hopefuls up 24 hours, creating one of the single busiest Derby prep mornings in race history. A total of 13 potential Derby starters worked, including nine under a light shower following the renovation break.

Work of the day

LOUISVILLE, Ky. - It all worked out fine in the end for the connections of Sweetnorthernsaint, but the gelding's final workout for next Saturday's 132nd Kentucky Derby hardly went without a hitch.

When jockey Kent Desormeaux overslept Saturday morning, trainer Michael Trombetta had to go to Plan B. Jockey Calvin Borel, who was scheduled to be on Fleet Valid, a workmate for Sweetnorthernsaint, wound up getting on Sweetnorthernsaint. James Hissam, Borel's agent, lined up Willie Martinez to work Fleet Valid.

On a morning when 12 Kentucky Derby hopefuls put in workouts at Churchill Downs, Barbaro, the undefeated winner of the Florida Derby, and Illinois Derby winner Sweetnorthernsaint, turned in the two most visually impressive moves.

Working before the renovation break, Barbaro worked five furlongs in 59.48 seconds under exercise rider Peter Brette. Trainer Michael Matz was only looking for a half-mile work, but Barbaro, from the half-mile pole, rolled through fractions of 13.06 seconds, 25.06, 35.70, 47.21 and was caught galloping out six furlongs in 1:12.14.

LOUISVILLE, Ky. - Jockey Kent Desormeaux, who was scheduled to work Kentucky Derby contender Sweetnorthernsaint at Churchill Downs on Saturday morning, did not show up for the work.

Sweetnorthernsaint was scheduled to work at 6:30. His trainer, Michael Trombetta, delayed the work until nearly 7 a.m., then finally had Calvin Borel work Sweetnorthernsaint. He was timed in 1:11.79 for six furlongs by Daily Racing Form.

Jim Pegram, Desormeaux's agent, said Desormeaux overslept in his Louisville hotel room.

LOUISVILLE, Ky. - Brother Derek, the probable favorite for the Kentucky Derby, had his first look around the Churchill Downs track on Friday morning after arriving on Thursday afternoon, and had an easy jog under exercise rider Luis Ortega. Brother Derek looked a little sleepier than usual, and there was a reason for it. His trainer, Dan Hendricks, gave him a shot of the tranquilizer Acepromazine on Friday morning.