Zarooni joined Godolphin in March 2010 and won the St. Leger , one of Britain 's five classics , in his first season . A total of 45 horses at prestigious stable Mahmood Al Zarooni fail drugs tests . Trainer Godolphin says he is responsible for administering banned steroids . Highly-rated filly The British Horse Racing Association and Opinion Poll are among horses to test positive . Certify summon trainer to attend disciplinary hearing .
A total of 45 horses at prestigious stable Mahmood Al Zarooni fail drugs tests . Trainer Godolphin says he is responsible for administering banned steroids . Highly-rated filly The British Horse Racing Association and Opinion Poll are among horses to test positive . Certify summon trainer to attend disciplinary hearing .