Grand Slam champions Serena Williams and Venus have landed in Rio de Janeiro and they are all set to rock Rio Olympics 2016. Despite a busy travel schedule, Serena wasted no time in heading straight to the tennis courts to start practicing with her sister - and doubles partner - Venus. Serena has four Olympic gold medals — one in women's singles and three in women's doubles — and she is hoping to return from this summer's Games with another in tow.

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