Melbourne [Australia], January 20 (ANI): World no. 4 Stefanos Tsitsipas beat Sebastian Baez of Argentina 7-6 (7-1), 6-7 (7-5), 6-3. 6-4 in a hard fought 2nd round match of the men's singles which lasted for three hours and 22 minutes to enter the third round here at Margaret Court Arena.
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