Brothers Alistair and Jonathan Brownlee and two-time world champion Helen Jenkins head up a strong Great Britain triathlon team for this summer's Olympics.

Jenkins and Alistair Brownlee are currently the respective number ones in the women's and men's world rankings, with Jonathan Brownlee ranked second behind his elder brother.

The Leeds siblings are joined in the men's race by experienced Londoner Stuart Hayes, while Vicky Holland and 20-year-old Lucy Hall will both make their Olympic debuts in the women's event.

Britain have never won an Olympic medal in triathlon but it would be a major surprise were they not to change that statistic this time.

Alistair Brownlee in particular has been utterly dominant over the last three years, winning 11 of the 15 World Triathlon Series races he has competed in, picking up two world titles as well as two European titles.

The 24-year-old was a clear winner over the Olympic course in Hyde Park last year, as was Jenkins, who has been a consistent medal winner and began her 2012 season with second place in Sydney and then a runaway victory in San Diego.

Jonathan Brownlee won in San Diego and then crushed the opposition in Madrid two weeks ago for his first victories over the Olympic distance at elite senior level.

The selection of the rest of the team has been controversial, with British Triathlon making clear their stated intent to win a medal and leaving open the possibility of picking domestiques to help their team-mates rather than the best athletes individually.

The governing body are not saying in what capacity Holland, Hall and Hayes have been selected, but in the case of the latter two especially, it appears they will be there in a supporting role.

Holland has hit form at just the right time with top-seven finishes in San Diego and Madrid and may well race in her own right.