Andy Murray says he needs to start matches a little quicker after reaching the US Open fourth round.
The defending champion progressed to the last-16 of the tournament by beating Germany’s Florian Mayer in straight sets 7-6 6-2 6-2.
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Murray admits he was a little slow out of the blocks.
Also through overnight was world number one Novak Djokovic, Serena Williams, and Li Na.