Dogwood Stable president Cot Campbell reported Tuesday that Impeachment, third in the Kentucky Derby and the Preakness Stakes, has sustained a tear in his tendon, with his future uncertain at this time.Campbell said the colt was fine after his fifth-place finish in the Aug. 26 Travers Stakes (gr. I), his last start, but that he showed signs of the tendon problem this past Sunday. "An ultrasound examination has revealed a fairly significant tear," Campbell said. "We are shipping him from Saratoga to Dr. Robert Copelan in Lexington for evaluation, but his future as a racehorse at this point seems unpromising. If we do decide to retire him for stallion duty, he needs to be in Kentucky so as to be accessible to interested domestic and foreign breeding establishments."The son of Deputy Minister, the only 3-year-old to compete in all three legs of this year's Triple Crown, has earned $350,450 from 11 starts. With only one victory to his credit, Impeachment also finished second in the Tampa Bay Derby and third in the Arkansas Derby (gr. II). He descends from the female family of Gold Beauty (the dam of Dayjur and Maplejinsky), The Prime Minister, and Majestic Venture.