Shergar: A puzzle unlikely to ever be solved

As tributes pour in for Walter Swinburn following his death at the age of 55, the riding great will always be remembered for his partnership with the mighty Shergar, who completed the Epsom and Curragh Derby double in 1981.

But the Shergar story went on to run much deeper than that, with the horse being kidnapped from Ballymany Stud. The horse was never found and it is a puzzle that will probably never be solved.

Shergar was lionised in the racing world for the manner of his triumph in the 1981 Derby, and to this day his winning margin of 10 lengths stands as a record for a race first run in 1780.