U.S. first lady Michelle Obama hits a tennis ball as she takes part in a "Let's Move" tennis clinic at...
U.S. first lady Michelle Obama hits a tennis ball as she takes part in a "Let's Move" tennis clinic at the U.S. Open to promote physical activity for kids, in New York September 9, 2011. REUTERS/Mike Segar (UNITED STATES - Tags: SPORT TENNIS POLITICS)