'I'm sorry I touch him in the wrong place': Wawrinka floors opponent in fifth set
--The world number 35 pushed fourth-seed Wawrinka to a marathon five sets over more than three hours on the first night of play at the Open.
Former Australian Open winner Stan Wawrinka wasn't expecting Slovakian Martin Klizan to put up such a fight.
Klizan sunk to the ground in pain, and Wawrinka quickly
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