Michael Phelps has captured his third gold medal at the Olympics as he continues his quest for an unprecedented eight gold medals at the Summer Games. Phelps won the 200 freestyle in world record time of one minute, 42.96 seconds. That beat his old mark of 1:43.86 set at last year's world championships in Australia.
The 200 freestyle was one of only two events in which he failed to win the gold in Athens four years ago. Phelps has also reached the final of the 200-meter butterfly.
It's been a good day in the pool for other U.S. swimmers as well:
-- Natalie Coughlin of the United States won the gold medal in women's 100 backstroke in China. She's the first woman to ever defend her Olympic title in that event.
-- Aaron Peirsol of the United States wins the gold in men's 100-meter backstroke in a world record.
Also today, the U.S. men's basketball team hits the court against Angola in its second game of the competition. The Americans are heavily favored to win their second straight game in the Olympics.
In tennis, Serena Williams needed just 44 minutes to race into the third round. She beat Samantha Stosur of Australia 6-2, 6-love, winning the final 10 games of the match.