The world number three, competing in a tournament for the first time since winning his maiden grand slam at the US Open last month, was in control early on but had to battle to win 6-2 3-6 6-2 as Wawrinka pushed him all the way.
Andy Murray survived a stiff test against Stanislas Wawrinka to move into the semi-finals of the Japan Open today.
The world number three, competing in a tournament for the first time since winning his maiden grand slam at the US Open last month, was in control early on but had to battle to win 6-2 3-6 6-2 as Wawrinka pushed him all the way.
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