6. Nastia Liukin, Gymnastics:
Nastia Liukin is a Russian-born gymnast who competes for the United States, having immigrated here as a child.
Liukin has tied the record of Shannon Miller for the American gymnast having won the most medals in a non-boycotted Olympic Games.
At the 2008 Olympics in Beijing, Liukin won a total of five medals (1 gold, 3 silver, 1 bronze). She's also medaled in a number of other international competitions such as the World Championships (4 gold, 5 silver), Pan American Games (3 gold, 3 silver, 2 bronze) and the Pacific Rim Championships (6 gold, 2 silver).
