John Ferguson has stepped down as chief executive and racing manager of Godolphin – bringing to an end a quarter of a century working for Sheikh Mohammed in various roles.

Following recent reports in the media indicating unrest within the Godolphin operation, Ferguson has described his position as “untenable”.

In a statement issued, Ferguson said: “Given the recent articles in the media, it was clear my position was untenable.

“At times such as these, what matters is the future and my stepping down will allow everyone to draw a line under things and move forward.”

“All the staff at Godolphin are wonderful people who work so hard for the greater good and I want to thank each and every one.”

“His Highness Sheikh Mohammed has given me so much over the years: trust, opportunity, amazing experiences and, perhaps most importantly, his kindness and counsel. For all these things I thank him with all my heart.”

Joe Osborne, the current managing director of Godolphin in Ireland, will take up the position of interim chief executive of Godolphin’s global operation.