World No. 2 and defending champion Roger Federer faces Tommy Robredo in the fourth round of the 2011 Australian Open.
As many of you know by now, Federer has been playing aggressive, first-strike tennis ever since teaming with coach Paul Annacone. To counter this strategy, Robredo will have to play aggressively as well. He’ll need to change direction frequently and keep Federer on the move. Extended, back-and-forth rallies play right into Federer’s hands.
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