Wawrinka sees off determined Dimitrov in Cincinnati
(Reuters) - Swiss Stan Wawrinka overcame battling Bulgarian Grigor Dimitrov 5-7 6-4 7-6(4) in a roller-coaster first-round match at the Cincinnati Masters on Tuesday.
Dimitrov clawed back from a double break down in the decider to level at 5-5 and after Wawrinka broke again, Dimitrov forced the tiebreak.
The Swiss surged into a 4-0 lead but Dimitrov rallied once more before Wawrinka closed out the match with an ace.
American Frances Tiafoe beat Frenchman Gael Monfils 7-6(7) 6-3 and Canadian Denis Shapovalov came from behind to see off Portugal's Joao Sousa 2-6 6-3 6-2.
Georgia's Nikoloz Basilashvili, the 15th seed, and 16th- seeded Belgian David Goffin also progressed.
Basilashvili ousted Russia's Andrey Rublev 7-6(4) 4-6 6-2 and Goffin stopped American Taylor Fritz 6-4 4-6 6-4.
Top seed Novak Djokovic meets Sam Querrey and number three Roger Federer plays Juan Ignacio Londero later on Tuesday.
(Reporting by Gene Cherry in Raleigh, North Carolina, editing by Ed Osmond)
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