Are you looking to have an Olympic champion of your own in the family? Fancy sharing in the glory of your children as they ride or swim or row or cycle to gold medal glory?

Well, the secret behind Olympic success appears to have been revealed: March 23.

That's because March 23 is the birthday of four of Britain's greatest ever Olympians.

Remarkably, Mo Farah, Jason Kenny, Sir Chris Hoy and Sir Steve Redgrave all share the same birthday, while it also happens to be the birthday of the great Sir Roger Bannister, who became the first man to run a mile in less than a minute in 1954.