21 October 2012 Last updated at 08:17

Jonny & Alistair Brownlee's parents swear by Yorkshire puddings

The parents of Jonny and Alistair Brownlee joke that "roast beef and Yorkshire puddings" are the key to their sons' success, after Jonny became world triathlon champion.

The 22-year-old finished second in the series finale in Auckland, New Zealand, but it was enough to ensure he topped the overall standings.

Rain hampered the final leg of the series, which Spain's Javier Gomez won in a sprint finish, but Keith and Cath Brownlee said their Yorkshire-born sons are used to bad weather.