BBC Sport - Jonny Brownlee: I must believe I can beat big brother

'I must believe I can beat big brother'

Great Britain triathlon star Jonny Brownlee says he must develop the mentality and belief that he can beat brother his older brother Alistair in competition.

Watch The Brownlees: An Olympic Story, Saturday 14 May, 13:00 BST, BBC One.

Available to UK users only.