Alex Morgan, Soccer
Watch out! This is 22-year-old, University of California soccer star's first Olympics as a member of the U.S. national women's soccer team.
Aly Raisman, Gymnastics
At just 18-years-old, Aly is the oldest member of the U.S. women's national gymnastics team She's already won 18 medals in national and international competitions. Make sure to watch for her on the balance beam!
Candace Parker, Basketball
The WNBA star won gold as a member of the U.S. women's national basketball team at the 2008 Olympics in Beijing. She's expected to do it again in London!
Chloe Sutton, Swimming
Chloe is getting a second chance. She was at the 2008 Olympics in Beijing but came back without a medal. This time she's looking for gold in the 400-meter freestyle.
Gabrielle Douglas, Gymnastics
At just 16 years old, Gaby came in first place during the trials by just 0.100 points! Look out for her during the floor exercises.
Jordyn Wieber, Gymnastics
The 16-year-old from Dewitt, Michigan is already considered one of the best gymnasts in the world!
Lolo Jones, Track & Field Hurdler
Lolo, a favorite to win the gold, is looking for a second chance in London. She stumbled during the 100-meter hurdles at the 2008 Olympics in Beijing but she's back and more focused then ever for 2012.
Marlen Esparaza, Boxing
This fierce one to watch has been boxing since the age of 11! She's already a bronze medal holder from the 2006 Women's World Boxing Championships and is competing in the Olympics for the very first time!
Natalie Coughlin, Swimming
Natalie already has 11 medals—including three gold--from the past two summer games. She's back for her third Olympics in a row to swim in the 400-meter free relay team.
Serena is no stranger to gold, winning (along with her sister Venus) at the 2000 Olympics in Sydney and the 2008 Olympics in Beijing. While Serena and Venus are paired for doubles in the London games--this is the first Olympics where Serena is competing for a medal in singles!