Photos: Michelle Obama joined by daughter, Sasha and mother, Marian at US Open

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First Lady Michelle Obama participated in tennis clinic earlier today at the US Open but hung around to take in a game. She was seen checking out the tennis match between Andy Murray and John Isner with a couple of students as well as her youngest daughter, Sasha and her mother, Marian. ~ Awww, they look like they are having a blast. ~