WATCH: Loyalty and sportsmanship in dramatic triathlon finish

Sport at its finest.

British brothers Alistair and Jonny Brownlee crossed the finish line of the final race in the World Triathlon Series together, after Alistair gave up his own chance of a win to help his stricken sibling.

Jonny was in first place with only a short distance to go but got into serious difficulties, stumbling and appearing on the verge of collapse.