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via get="_blank">guestofaguest.com: While we were getting ready for a grad slam tennis match here in the Hamptons, New York City was doing the same preparing itself for the U.S. Open with pro-ballers, crowds of A-Listers, and plenty of parties to go around, kick-starting the weekend of tennis playing mayhem. Friday night Heineken hosted a bash at the Skylight Studios with Serena and Venus Williams and James Blake complete with kegs and Wii tennis so party-goers could practice hitting balls of their own before the big game started.

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