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Janko Tipsarevic beats world number one Novak Djokovic 3-6 6-3 6-3 at the ATP World Tour Finals in London.
Tipsarevic, a replacement for the injured Andy Murray, inflicts just a sixth defeat in 76 matches upon his fellow Serbian.
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World number one Novak Djokovic takes time out after practice at the ATP World Tour Finals in London to learn the art of being a ball boy.
Over 1,600 youngsters applied for the 30 coveted positions and the 12 to 16-year-olds from all around the UK work hour-long stints throughout the day in five teams of six.
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World number nine Janko Tipsarevic, a late replacement at the ATP World Tour Finals for the injured Andy Murray, apologies to his “friend” Novak Djokovic for beating him in their group clash days before the Serbian pair holiday together.
The 27-year-old had no chance of qualifying for the semi-finals but the three-set defeat, 3-6 6-3 6-3, dented his compatriot’s chances.
The defeat, only Djokovic’s sixth in 76 matches this year, is the first time he has lost back-to-back matches since March 2010.