Kerri Walsh Jennings and partner April Ross got a preview Saturday of what it will take to win an Olympic title hours before earning the top seeding in Pool C at the Rio Games.

The Americans lost to rivals Talita Antunes and Larissa 21-18, 21-14 in 33 minutes in the final of the Gstaad Major beach volleyball tournament in Switzerland. The top-ranked Brazilians got their fourth victory in five World Tour meetings against Walsh Jennings and Ross to earn a psychological edge ahead of the Summer Olympics that open Aug. 5.

Walsh Jennings, a former Archbishop Mitty High and Stanford star, is seeking to match Lisa Leslie as the second American woman to win four consecutive Olympic titles in a team sport.

The Americans were drawn into a tough bracket among the 24 teams who have qualified for the Aug. 6-18 Olympic competition. They will face Isabelle Forrer and Anouk Verge-Depre of Switzerland, Fan Wang and Yuan Yue of China and Mariafe Artacho and Nicole Laird of Australia in round-robin play.

Talita and Larissa earned the top seeding in Pool A while fellow Brazilians Agatha Bednarczuk and Barbara Seixas are No. 1 in Pool B. The other American qualifiers, Lauren Fendrick and Brooke Sweat, were drawn into Pool A.

U.S. men earned seedings in Pool C (Phil Dalhausser and Nick Lucena) and Pool F (Jake Gibb and Casey Patterson).

Walsh Jennings and Ross barely survived their semifinal match Saturday in Gstaad when rallying past Laura Ludwig and Kira Walkenhorst of Germany 18-21, 23-21, 15-11. Walsh Jennings and Ross faced match point at 20-17 in the second set before the comeback over a team that defeated them last month. The Germans are top-seeded in Pool D in Rio.

Contact Elliott Almond at 408-920-5865. Follow him on Twitter at twitter.com/elliottalmond.