Jonathan Edwards presents highlights from the second round of the triathlon World Series from Australia.The trip to the Gold Coast is a vital one for the British athletes, with the world series race doubling up as a Rio Olympic selection showdown for the final men's and women's slots.The women's race is the most intriguing with Commonwealth champion Jodie Stimpson going head to head with former world champion Helen Jenkins.With the Olympic gold and bronze medallists from London 2012 - Alistair Brownlee and brother Jonny - already selected, the men's race is a contest to decide which Briton will join them in Rio. European Games champion Gordon Benson and Tom Bishop are the British triathletes going head to head in the race within a race in Australia.