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World number one Novak Djokovic beat Cedric Marcel Stebe of Germany 6-4, 6-2 in the first round of the Dubai Open.
20-year-old younger brother Marco Djokovic - who Novak is mentoring, went down 6-3, 6-2 Andrey Golubev in only his 3rd match on the ATP Tour.
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Roger Federer plays his opener today against the Frenchman Michael Llodra