Djokovic needs to get by a possible matchup against No. 3 Stan Wawrinka in the semifinal .
That should have Djokovic nice and warmed up for maybe the greatest ever to play : the easy - swinging and smooth - sliding Federer .
Djokovic needs to get by a possible matchup against No. 3 Stan Wawrinka in the semifinal , and that should have Djokovic nice and warmed up for maybe the greatest ever to play : the easy - swinging and smooth - sliding Federer .