Alistair Brownlee will face Javier Gomez, the man he beat to London 2012 gold, as he makes his 2013 World Series debut in San Diego at the weekend.
The 24-year-old triathlete chose not to compete in the Auckland series opener, which Gomez won earlier in April.
Brownlee returned to top-flight racing after London with victory over non-Olympic distance at the Abu Dhabi triathlon in February.
Brownlee's younger brother Jonathan is out of San Diego with an ankle injury.
Jonathan, , is targeting a return at the third event of the eight-race series in Yokohama, Japan in May.
Gomez has started the season in impressive form as he bids to break the Brownlees' dominance however.
In addition to he has won a World Cup race in Mooloolaba, Australia.
Jodie Stimpson, who was second in Brisbane in March but forced out of the Auckland race with hypothermia, Katie Hewison, who withdrew with a stomach bug, and reigning under-23 world champion Non Stanford will compete in the women's race.