Preakness winner Tank's Prospect, who pulled up short in today's Belmont Stakes, is through with racing.

Two hours after the race, trainer Wayne Lukas said, "After consulting with the veterinarians and owners, we have decided to retire Tank's Prospect from racing.

"Horses with his type of injury have come back, but we feel that it would be unfair to the colt to continue to race him. His future now is as a stallion."

Owner Gene Klein said the son of Mr. Prospector sustained a pulled suspensory ligament in his right front leg.

The injury was described as "like a sprained ankle" by Dr. William O. Reed, a track veterinarian. He said it was not life-threatening and that Tank's Prospect could run again.

However, Lukas told Klein the horse could be no more than a good allowance horse when he recovered.

"He's through at the level you want him to run at," Lukas told Klein in the Belmont Park barn after Tank's Prospect, taken from the track in a horse ambulance, had been administered painkillers.

"Then he's not going to run again," Klein responded.

Tank's Prospect won seven of 11 races in earning $1,355,645. As a 3-year-old he won four of seven worth $937,050. The victories included the Preakness and the Arkansas Derby. He was seventh in the Kentucky Derby.

"You've got to take the bitter with the better," said Klein, ex-owner of the NFL San Diego Chargers.

"I suspect it happened at the one-half or three-eighths pole," Lukas said of the injury. "He was running easily, then dropped. I saw the stride wasn't right."

Reed said X-rays were taken and will be examined Sunday. He said the colt, who finally pulled up 70 yards short of the finish line, will have a support band put on the leg.