US Open champion Andy Murray battled his way to an edgy opening win against Tomas Berdych at the ATP World Tour Finals in London.
Murray began the round-robin stage with a 3-6 6-3 6-4 victory at the O2 Arena. The top two players from each group progress to the semi-finals of the season-ending championships.
After the match, Murray discusses how nice it is to be back on home soil and reveals where his US Open trophy is.
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