BEIJING -- Saturday marks the final full day of track and field competition at the Beijing Olympics with a total of seven gold medals being awarded.

The United States is hoping to earn a few more prizes and the best chance should come in the 4x400 relays for both the men and women. Each squad won its respective qualifying heat on Friday and both are expected to pick up some hardware in the medal race.

The men's team could be considered heavy favorites after sweeping gold, silver and bronze in the individual 400m on Thursday. The men are led by LaShawn Merritt (gold), Jeremy Wariner (silver) and David Neville (bronze). Sanya Richards, who had a somewhat disappointing bronze finish in the women's 400m, is slated to anchor the other relay.

Meanwhile, Chaunte Howard of the U.S. will try to medal in the women's high jump, while fellow Americans Shannon Rowbury and Bernard Lagat aim for gold in the women's 1,500 meters and men's 5,000m, respectively. Gold will also be up for grabs for the men in the 800m and javelin throw, but no Americans advanced to the final round of those events.

After Saturday's competition just one track and field event remains, as the men's marathon takes its traditional center-stage status on the final day of action at the Summer Games.

The U.S. women's basketball team attempts to win its sixth gold medal in Olympic competition, as Australia again awaits in Saturday's championship contest. Australia and the U.S. are both undefeated in the 2008 Olympics. This will mark the fifth Olympic meeting between the two countries and third straight in the gold medal game. The Americans earned a 74-63 victory for gold at the Athens Games four years ago and posted a 76-54 triumph to deny the Aussies a gold as the host at the 2000 Sydney Games.

The U.S. women have never lost to Australia in Olympic or World Championship play, notching a perfect 13-0 mark against the Aussies in those two events. Prior to the gold medal game, China and Russia will battle for the bronze medal.

A USA-Brazil gold medal match in women's volleyball is set for Saturday. This will be Brazil's first Olympic final and the first for the U.S. since 1984.

Argentina, which won the gold medal in 2004, plays Nigeria in the men's soccer final. Argentina extended its record winning streak in the Olympics to 11 games with a 3-0 semifinal win over Brazil. Argentina's last Olympic loss was to Nigeria in the 1996 championship. Argentina will try to become the first country in 40 years to win back-to-back gold medals. Hungary was the last country to capture consecutive golds in men's soccer in 1964 and 1968. Great Britain (1908, 1912) and Uruguay (1924, 1928) are the other back-to-back winners. Nigeria advanced with a 4-1 victory over Belgium.

Medals will be awarded in baseball with defending Olympic champion Cuba looking to avenge a loss earlier this week to South Korea when the teams meet in the gold medal game. Cuba advanced with a 10-2 rout of the United States on Friday night, while the Koreans remained undefeated heading into the final with a 6-2 win over Japan. The United States, looking for its first medal in Olympic baseball since taking the gold in 2000, will meet Japan in the bronze medal game.

China's Zhou Luxin will try to make diving history on Saturday when he enters the semifinals -- and, presumably, the finals -- of the men's 10-meter platform competition as the favorite to win gold. Chinese divers have won all seven gold medals awarded in Beijing. Another would give them the first Olympic sweep in diving since the United States in 1952. Australia's Mathew Helm, the 2004 silver medalist, joined U.S. divers David Boudia and Thomas Finchum among the 18 competitors who qualified for the semifinals, which will precede Saturday night's final.

The final medals will be awarded in taekwondo on Saturday in the men's and women's heavyweight divisions. Men's medal favorites Alexandros Nikolaidis of Greece, the 2004 silver medalist, and Angel Valodia Matos, a 2000 gold medalist, have been drawn in separate pools. On the women's side, two-time gold medalist Chen Zhong is a favorite.

Five gold medal bouts are on tap in boxing Saturday, but none involve the U.S. The Americans are done in Beijing, coming away with only a bronze from Deontay Wilder. Italian Clemente Russo, who beat Wilder in the semifinals, will fight in Saturday's gold medal match in the 91kg class against Russian's Rakhim Chakhkiev in a rematch of the 2007 world championship final.

Six finals are scheduled for flatwater canoe/kayaking, while medals go out in men's and women's mountain biking.

For a third straight time, Norway and Russia will battle for supremacy in women's handball, and Germany battles Spain in the final of men's field hockey.

The U.S. is on the verge of surpassing the 102 medals won at the 2004 Athens Olympic Games. Right now they're tied for that spot and ahead in the overall medal count in Beijing. The record for medals won by the U.S. in an Olympic Games held outside the United States is 108, set at the 1992 Barcelona Games. China will win the gold medal count at these Games. The host country has 47, while the U.S. has 31. China is also second overall with 89 medals, while Russia is third with 57 total.