A small fire started on the third floor of the clubhouse at Churchill Downs Thursday at approximately 4:15 p.m. The minor fire was detected by track employees and extinguished before firefighters from the Louisville Fire Department arrived. Racing was not delayed and no evacuation was deemed necessary. Bob Bailey, Churchill's security director, said an employee smoking a cigarette on a fire escape likely caused the fire, which resulted in charred wood at the bottom of a doorframe…Jockey Tony D'Amico was treated for back and shoulder pain and underwent further examination at the University of Louisville (Ky.) hospital following a spill in the feature race Thursday at Churchill Downs. D'Amico was thrown when his mount, Claire's Honor, became entangled in the legs of Ican'thearyou and went to his knees as those two and Show Falcon contended for the lead near the finish line in the 1 1/16-mile grass test. D'Amico was unconscious for several minutes as he lay on the track and was then taken to the hospital after regaining consciousness. Ican'thearyou crossed the finish line first but was disqualified and placed last in the six-horse field for failing to maintain a straight course. Show Falcon was declared the winner...K One King has been sent to Gainesway Farm to rest after it was discovered that he had suffered a strained suspensory ligament in his right front leg. The injury was discovered in the days after his sixth-place finish in the Stephen Foster Handicap (gr. II)…Louisiana Derby (gr. II) winner Mighty is galloping again at Churchill Downs for trainer Frank Brothers, who said the first breeze for the son of Lord At War could happen in the next couple of weeks. Brothers said he expects Mighty to return to competition in the fall…On the track at Churchill Downs Thursday were Ecton Park, who breezed a half-mile in :49 for trainer Elliott Walden. Nite Dreamer breezed five furlongs in 1:02 1/5 in his final prep to repeat as the winner in the Prairie Meadows Cornhusker (gr. III) on July 5. Williams News worked six furlongs in 1:11 3/5. He runs next in the Stars and Stripes Breeders' Cup (gr. III) at Arlington International Racecourse…While the condition of jockey Dean Butler has improved since he was hospitalized Wednesday for injuries sustained in an accident at Monmouth Park, the 29-year-old rider remains in intensive care at Monmouth Medical Center in Long Branch, N. J. Dr. Angelo Chinnici, Monmouth Park's medical director, said Butler was still listed in critical condition because of head trauma he suffered when his mount, Gesche, fell near the three-furlong pole during the sixth race. Chinnici said Butler remained on a respirator and that X-rays and a CAT scan did not show any fractures of the neck and spine. Cliff Collier, Butler's agent, said the rider has a concussion, broken nose, chipped tooth, and facial contusions. Gesche sustained some cuts but was not seriously injured during the accident…California Thoroughbred Breeders' Association Sales has cataloged 201 yearlings for the upcoming Del Mar Yearling Sale on August 14-15 at the Del Mar Horse Park in Del Mar, Calif. The total represents an increase of 38% over the 145 yearlings cataloged in last year's record-breaking sale. Catalogs will be available in mid-July. For more information contact CTBA Sales at (800) 573-CTBA…Japanese superstar jockey Yutaka Take, who recently relocated to southern California from his native country, will ride at Lone Star Park in Grand Prairie, Texas next Monday and Tuesday. Since moving his tack to the U.S. for a planned 18-month stint, Take has returned to Japan twice, winning four races on June 18 and riding five winners last Sunday. In between, he made a sojourn to Royal Ascot in England, where he finished second twice. Agent Nick Cosato has booked Take on Whyome in the July 3 Grand Prairie Turf Challenge and on Islay Mist in the Walmac Lone Star Oaks the following day.