British tennis ace Andy Murray is determined to blast his way past Switzerland's Stanislas Wawrinka to reach the last 16 of the US Open at Flushing Meadows.

The World No.4 dispatched Dustin Brown inside just 85 minutes on Friday to set up the clash with the No.25 seed.

"I feel physically good. It's nice to get a couple of quick matches after having the late start [his first match was on Wednesday]. But it is difficult to judge how well I am playing based on [the Brown] match because there were so few rallies," The Guardian quoted Murray, as saying.

"The first round was a good one. Today I served well, so it is a good start, but the matches get tougher from now," he added.

Murray has played Wawrinka twice before in slams - in the fourth round of the 2008 US Open and in the last 16 of last season's Wimbledon. (ANI)