Phil Dalhausser, left, of US looks on as his teammate Todd Rogers, right, dives for a ball during their Beach Volleyball match against Japan at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek)
LONDON (AP) -- Defending beach volleyball champions Todd Rogers and Phil Dalhausser won their opener at the Olympics, improving the United States to 4-0 in the tournament.
Americans April Ross and Jennifer Kessy also won their match Sunday night. Two-time women's gold medalists Kerri Walsh Jennings and Misty May-Treanor won Saturday, as did No. 2 U.S. men's team Jake Gibb and Sean Rosenthal.
Rogers and Dalhausser lost their first match in Beijing, then came back to win their next six matches -- including the gold medal game. They started out better this time, eliminating the Japanese team of Kentaro Asahi and Katsuhiro Shiratori 21-15, 21-16.
Ross and Kessy also won in straight sets over Ana Gallay and Vir
ginia Zonta of Argentina.