WATCH LIVE: Men’s, women’s beach volleyball Round of 16 matches

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Tournament play in the men’s and women’s beach volleyball competitions begins Friday, with the American tandem of Kerri Walsh Jennings and April Ross among the teams looking to move one step closer to the medal round. Jennings and Ross, who won all three of their group matches, face Italy’s Marta Menegatti and Laura Giombini in the final match of the day.

Menegatti and Giombini finished third in Group D on four points, as they beat the pair from Egypt in straight sets but lost in three sets in their matches against the top two teams in the group. Jennings is 46-2 in sets in her Olympic career, and after winning three consecutive Olympic gold medals with Misty May Treanor the expectation is that she’ll win a fourth Olympic gold medal in Rio.

WATCH LIVE: Men’s, women’s Round of 16 matches — 11 a.m. Eastern

Both of Brazil’s women’s beach volleyball teams (Larissa and Tailta, Agatha and Barbara) will be in action Friday, with Larissa and Talita expected to be a medal contender and winners of Group A. Among the men’s teams in action is Cuba’s tandem of Diaz and Gonzalez, who surprised many by finishing atop their group on six points.

Matches begin at 11 a.m. Eastern, and they’ll be streamed live on and on the NBC Sports app.