Murray relieved after Lopez win

Andy Murray reacts to his victory over Feliciano Lopez in round three of the US Open, admitting he struggled with the conditions on his way to a four-set win over the Spaniard.

The third seed believes that playing "a little bit better" than Lopez at the end of the tie-breaks was the key to his victory, and reveals the Spaniard's consistent serving had been a source of frustration for the duration of the match.

Murray struggled in the heat on the Louis Armstrong Stadium, but came through 7-6 (7-5) 7-6 (7-5) 4-6 7-6 (7-4) in three hours 53 minutes to reach the last 16.

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