Last year's champs set up defense of their title with a stockpile of All-Americans on the roster.
Thanks to gritty stops in the final minutes, USC held off Stanford to take the NCAA men's water polo crown in December.
With Trojans on their rosters, USA men and women win gold, Canadian women take silver and Brazil women earn bronze.
Six Trojans are repping their nations at the Games in Lima, Peru.
USA, Spain and Australia take the medal stand with Trojans representing all three nations.
Seven nations boast USC water polo players at this year's event in South Korea.