Battle of the clones: when will a replica horse win Olympic gold?

Story highlights

  • Tomatillo, clone of eventing great Tamarillo, reaches 18 months old. Will he compete like his 'dad'?
  • Rules changed in 2012 to let clones compete in sport, but experts say focus on breeding for now
  • Two clones of Irish sporthorse sire Cruising revealed in February after years of speculation
  • Would an Olympic Games with every competitor on a clone of the same horse actually be a fairer contest?

(CNN)To the untrained eye, Tomatillo looks like any horse.

To those in the know, the 18-month-old looks like one horse.
Tomatillo is the clone of