NEW YORK, Aug. 19 (Xinhua) -- Briton Andy Murray advanced into the quarterfinals of the ATP Cincinnati Masters on Thursday by outlasting Latvia's Ernests Gulbis 4-6, 6-3, 7-6 (7-4).

The 23-year-old Scot won six of nine break-point chances and made only 23 unforced errors while benefitting from 54 from Gulbis in booking a spot in the final eight.

"I was struggling a little bit but I managed to save it," Murray said. "I hung in there well. He had chances in the second set. I was struggling with my legs a little bit in the third set. I was tired but I hung in there."

Andy Murray of Britain serves to Ernests Gulbis of Latvia during their third round match at the Cincinnati Masters tennis tournament in Cincinnati, Ohio, August 19, 2010.

Murray will next face American Mardy Fish, who ousted Frenchman Richard Gasquet 7-5, 6-2.

"He plays aggressive tennis," Murray said of Fish. "I will have to hit my passing shots and take advantage of my opportunities."