ATP World Tour highlights: Federer outclasses Tipsarevic
Roger Federer begins his bid for a seventh ATP World Tour Finals title with a comfortable 6-3 6-1 win over Serbia's Janko Tipsarevic.
The Swiss maestro cruised to victory against an out-of-sorts world number nine in just 68 minutes to record a record 40th victory in the season-ending tournament, surpassing Ivan Lendl's 39 victories.
The pair are sharing Group B at the O2 Arena with Spain's David Ferrer and Argentinian Juan Martin del Potro.
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