Watch | First identical triplets to compete in Rio Olympics

Leila, Liina and Lily Luik from Estonia will make history as the first identical triplets to compete against each other at the Olympic games.While twins competing in the same event is not uncommon at Olympic level, it is believed that no triplets have competed against each other in the same event before. The 30-year-old blonde, blue-eyed sisters from the southern Estonian university town of Tartu took up serious distance running when they were 24 in 2010.