WATCH LIVE: United States women begin defense of water polo gold medal

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The women’s water polo competition finally gets underway Tuesday, with four matches scheduled for the Maria Lenk Aquatics Center including the reigning Olympic champion United States taking on Spain.

WATCH LIVE: United States vs. Spain — 10:40 a.m. Eastern

The United States won the FINA World Championships last year in Kazan, Russia, and they’ll look to follow up that result with an Olympic gold medal in Rio. The two nations met in the quarterfinals of those championships, with the United States eliminating Spain 8-5 on their way to the title. Also in Group A is Italy, which finished third in those championships, and host nation Brazil.

WATCH LIVE: Women’s water polo, Day One — 8:00 a.m. Eastern

Group B includes fourth place finisher Australia, with 2015 worlds runner-up Netherlands failing to qualify for the Olympics. The Aussies open with Russia, and the other Group B match pits Hungary against China.