Venus Faces Lil' Sis Serena in 4th Wimbledon Final

Venus Williams of U.S. returns to Dinara Safina of Russia, during their women's singles semifinal on the Centre Court at Wimbledon, Thursday, July 2, 2009. (AP Photo/Kirsty Wigglesworth)

(AP)

"Her positive attitude," Serena said. "I get negative a lot. I think it creates who I am as a person, but it's good to stay positive and stay calm."

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