Andy Murray advances to quarterfinals

Britain's Andy Murray is into the quarterfinals of the Australian Open after beating American John Isner 7-6 (4), 6-3, 6-2.

Britain's Andy Murray is into the quarterfinals of the Australian Open after beating American John Isner 7-6 (4), 6-3, 6-2.

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Murray broke Isner's serve in the seventh game of the final set when Isner netted a forehand. Isner, angry with the shot, flung his racket to the ground in disgust, breaking it.

Murray, attempting to win his first Grand Slam title, could play defending champion Rafael Nadal in the next round. Nadal was scheduled to play Croatia's Ivo Karlovic in the next match at Rod Laver Arena.

The loss was the big-serving Isner's first in nine. He won five matches en route to his first ATP title at Auckland 10 days ago.