PARIS — One got the feeling watching the Women’s World Cup match on Sunday night that the reserves for the United States women’s soccer team could branch off from their compatriots, form their own sovereign country with its own national team, and make a credible run for the trophy at this summer’s tournament.

That’s how deep the Americans’ well of talent looked at the Parc des Princes in the team’s second match of the group stage, how thoroughly dominant and at ease the players were over the course of their 3-0 victory over Chile, all while several of their more high-profile teammates watched from the bench.

Coach Jill Ellis made seven changes to the starting lineup she used in the team’s 13-goal thrashing of Thailand last week. And still the readjusted group on Sunday scored three times in the first half — two goals from Carli Lloyd, one from Julie Ertz — and cruised into the knockout stage of the tournament ahead of its final group stage match against Sweden on Thursday.

“We have the best team in the world,” defender Ali Krieger said, “and the second-best team in the world.”