Sheikh Mohammed has described himself as "appalled and angered" by the actions of Mahmood Al Zarooni, who was responsible for the traces of anabolic steroids that were recently found in 11 of Godolphin's horses.

Despite the fact that only 11 racehorses at the team's Newmarket stable tested positive, Sheikh Mohammed has insisted that none will be allowed to compete until they have all passed tests.

"I was appalled and angered to learn that one of our stables in Newmarket has violated Godolphin's ethical standards and the rules of British racing. I have been involved in British horse racing for 30 years and have deep respect for its traditions and rules," he said in a statement. "I built my country based on the same solid principles. There can be no excuse for any deliberate violation. Godolphin is fully cooperating with the British Horseracing Authority to get to the bottom of this matter and take any appropriate disciplinary action.

"I have ordered the Godolphin management to undertake an immediate review of our internal procedures and controls to ensure to prevent any reoccurrence of this type of activity in any stables of mine. We will be locking down the Moulton Paddocks stables with immediate effect, and I have instructed that I want a full round of blood samples, and dope testing done on every single horse on that premises.

"I can assure the racing public that no horse will run from that yard this season until I have been absolutely assured by my team that the entire yard is completely clean. I have worked hard to ensure that Godolphin deserves its reputation for integrity and sportsmanship, and I have reiterated to all Godolphin employees that I will not tolerate this type of behaviour."

It was confirmed earlier today that Al Zarooni will stand before a British Horseracing Authority disciplinary panel tomorrow.