Last year's Ladbrokes St Leger hero Encke was the highest-profile name among seven further Mahmood Al Zarooni-trained horses to test positive for anabolic steroids.

Suspended trainer Mahmood Al Zarooni claims he has been “advised to appeal” against the eight-year suspension he received for administering anabolic steroids to 15 horses in his care.

Suspended trainer Mahmood Al Zarooni was guilty of a “widespread systematic misuse of illegal substances”, according to the British Horseracing Authority.