Top British triathletes Alistair and Jonny Brownlee lob snowballs at BBC Sport's cameras as heavy snow descends during filming at the South Leeds Stadium.

Alistair Brownlee, the 2009 world champion, expects to shake off a minor leg problem - his right leg can be seen in a protective cast - ahead of the 2011 season, where his focus will be July's Hyde Park triathlon in London.

Younger brother Jonny, the current Under-23 World Champion, has set his sights on overhauling Alistair ahead of London 2012.