One of the Games' showcase teams, the U.S. men's basketball squad, easily won its first game Sunday, beating France 98-71.
Kevin Durant led the United States, made up of NBA all-stars, with 22 points. Kevin Love scored 14 points and Kobe Bryant had 10 for the U.S., which next plays Tunisia on Tuesday.
Many are hoping to see how this year's American squad stacks up to the 1992 U.S. basketball team, known as the Dream Team, which trounced the competition at the Barcelona Games by an average of more than 40 points. Some analysts called it the greatest sports team ever assembled.
Five men's basketball games -- including the United States vs. France -- are scheduled to play out Sunday in the second full day of competition.
As the women's basketball competition started, Beijing bronze medal winner Russia defeated Canada on Saturday. Team USA beat Croatia by a score of 81-56.
All teams are trying to keep the U.S. women from winning their fourth straight gold medal. Team USA has played Australia for gold in each of the past three Olympics.